Post on 16-May-2020
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Strategic Cities Development Project (SCDP)
Environmental Screening Report for Drainage Improvement in Galle City
Rehabilitation of Cross Drains of Moragoda Canal
Package B Hirimbura Ela & Bombe Castle Ela
November 2016
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Annexes
1. Location maps (a, b ,c & d)
2. Terrain and Drainage map (2a&b)
3. Soil map and geological map (3a & b)
4. Flat Plans of Canal Design
5. Burrow Pit Management Guidelines
6. Waste Management General Guidelines
7. Environmental Pollution Control Standards
8. Factory Ordinance and ILO Guidelines
9. Chance Find Procedures
10. Terms of Reference for Recruitment of Environmental and Social Safeguard Officer
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Strategic Cities Development Project (SCDP)
Environmental Screening Report
1. Project Identification
Project title Drainage Improvement in Galle MC area
Rehabilitation of Cross Drains connected to MoragodaEla
Package B – Hirimbura Ela, Bombe Castle Ela
Project
Proponent
Strategic Cities Development Project (SCDP), Ministry of Megapolis and
Western Development
2. Project Location
Location Galle, Southern Province.
Location of the project is depicted in Annexure 1(a & b).
Definition of
Project Area
(The
geographical
extent of the
project & areas
affected during
construction)
A proper drainage study had been carried out under the Strategic Cities
Development Project to investigate the existing drainage system of Galle
Municipal Council area in order to find solutions for the flood issue. Accordingly,
the design proposals were considered for the entire drainage system and packaged
them into 06 separate packages enabling early implementation.
Under the Package A, the interventions were proposed along Hirimbura Ela and
Bombe Castle Ela of the Moragoda Ela basin. The details can be listed as follows
1. Hirimbura Ela-1200 m (1.2km) in length, starting from Hirimbura Road
with the GPS location 6.065154N & 80.217158E and connected Bombe
Castle Ela at GPS Location 6.056725N & 80.222408
2. Bombe Castle Ela ; 1647 m (1.6km)in length, starting from Karapitiya
Junction, Hiribura Cross Road with the GPS location 6.066216N &
80.224916 and connected to Moragoda Ela at GPS Location 6.054961 N
& 80.222254
Total Length of all two cross drains is 2.897 km and the width of the canal varies
from 0.5 m to 5.00 m.
The project area is illustrated in Annexure 1 (a, b, &c).
Adjacent land
and features
In general, the area is built up and with home gardens consisting coconuts lands
but they are not at the commercial scale.
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3. Project Justification
Need for the project
(What problem is the
project going to solve)
The Galle Municipal Area Drainage System comprises of a network
of large open canals, smaller tributary canals and a few low-lying
marshes functioning as natural retention basins. The system functions
to serve the drainage needs of the Galle area and reduces incidence of
flooding and thereby improves the health and sanitation conditions of
the urban community, particularly of the urban poor who inhabit low-
lying regions.
The drainage system could be broadly divided into three major canals
with three outfalls directly discharging into the sea. The location of
the main canals and the details of the cross canals are provided in
Annexure 1 (a,b,c&d).
Main Canals:
1. Moragoda Ela (Length – 4.259 km)
2. Kepu Ela ( Length – 3.230 km)
3. Moda Ela (Length – 3.321 km)
Cross Drains:
1 Heen Ela 1149m
2 Heen Ela Cross Drain 1 296m
3 Heen Ela Cross Drain 2 774m
4 Bombe Castle 1647m
5 Hiribura Canal 1250m
6 Beligaha Cross Drain 465m
7 Donald Janz 900m
8 DangedaraAppaladuwa Cross Drain 1 265m
9 DangedaraAppaladuwa Cross Drain 2 648m
10 DangedaraAppaladuwa Cross Drain 2-new diversion canal I
11 DangedaraAppaladuwa Cross Drain 2-new diversion canal II
12 DangedaraAppaladuwa Cross Drain 2-new diversion 2
13 DangedaraAppaladuwa Cross Drain 3 447m
14 KanampitiyaMohideenwatta Cross Drain 495m
15 ThalapitiyaKovilawatta Cross Drain 1 711m
16 ThalapitiyaKovilawatta Cross Drain 2 950m
17 ThalapitiyaKovilawatta New Diversion 1 360m
18 ThalapitiyaKovilawatta cross drain 1- Additional Drain
19 ThalapitiyaKovilawatta New Drain
20 Pettigalawatta Pump Station cross drain 614m
21 Pettigalawatta Pump Station Drain 1200m
22 Pump station Bypass 170m
23 Pettigalawatta Pump station Cross drain - Alternative path
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Fig. 1 Locations of cross drains and packages
The drainage area for the said cross drains in Package B (Hirimbura
& Bombe Castle) is relatively flat area. Further the drainage flows are
obstructed at structure locations (mainly culvert) and due to vegetation
growth causing inadequate width for the smooth discharge of the
water.
In order to minimize the frequent flooding issue in the Galle Municipal
area, it is proposed to implement a drainage improvement plan in two
phases.
Phase I: Drainage improvement of Moragoda Ela including bank
protection and reconstruction of crossing structures and selected cross
drains.
Phase II: Drainage Improvements of Kepu Ela, Moda Ela and all the
other smaller tributary canals with cross drains
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Accordingly the drainage improvements in the Moragoda Ela basin
will progress not only in the lowlands but also in the entire basin. The
urbanization of the basin will cause increase of flood runoff resulting
increase of the flood damage in the lower areas.
The proposed Phase I, Moragoda Ela basin storm water drainage
improvement plan will be formulated taking into account the
conditions of the entire basin including future development scenario
of the basin. It is essential that the storm water drainage project should
precede the basin development so as to minimize serious storm water
drainage problems. Hence, the implementation of the proposed storm
water drainage project will assure the sustainable development of the
basin leading to increase the living standard of mainly low income
community living in the frequent inundation areas. It will bring
positive impacts to the environment and will contribute to poverty
reduction through improvement of the living conditions of the people.
Further the rehabilitation of selected 24 cross drains along Moragoda
Ela were divided in to 6 packages considering the locations and the
levels of social and environmental impacts. Thus the Hirimbura Ela
and Bombe Castle Ela are the two cross canals considered for
rehabilitation under package B.
Purpose of the project
(what is going to be
achieved by carrying out the
project)
The main purpose of the project is to clear the existing bottlenecks
and strengthen the canal banks with a proper width and a depth in
order to improve the conveyance capacity to overcome the flooding
issue.
By implementing the project the following benefits could be
achieved..
Benefits
Enhancement of flood control.
Increased land values in adjacent areas.
Improved health conditions and reduction in health expenditure.
Reduction in annual and recurrent operation and maintenance cost
to the central government for canal clean-up
Increased use of the canal system for recreational purposes and
waterfront development.
Beneficiaries
People residing close to the canal and with the combined effect,
the entire Metropolitan area.
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The Government and the agencies managing the storm water
drainage.
Alternatives considered
(different ways to meet the
project need and achieve
the project purpose)
No any other alternative is considered for the project since these canals
are already exists within a highly dense areas. Therefore it is envisaged
as per the drainage study that there are no any other technically
feasible and economically viable engineering interventions that could
be accommodated in place of the proposed option.
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4. Project Description
Proposed start date 2017 February
Proposed completion
date
2018 February
Estimated total cost LKR 134Mn
Present land
ownership
Galle Municipal Council
Description of the
project
(with supporting
material such as
maps, drawings etc
attached as
required)
The proposed drainage improvement project is to rehabilitate Hirimbura
Ela, Bombe Castle Ela with required canal depth and cross sections to
improve the conveyance capacity to match with the requirement for a 10
year design return period of rain fall.
The proposed interventions under the drainage improvement project for
the selected canals of package A are;
1. Bank protection of selected necessary locations along the 3 cross
canals
Interventions for Canal Bank
Protection
Hir
im
bu
ra
Bom
b
e
Cast
le
1 New gabion wall construction - -
2 flow guidance walls made of
earthen banks
308m 490m
3 Concreating 145m 890m
4 Concrete + Cover Slab 52m 152m
5 Culverts 5 7
2. Minimum Land Acquisition only for canal rehabilitation.
3. Shifting of utility posts (electricity and telecom), if required.
4. Removal of debris and nuisance weeds (Salvinia modesta and
Eichhornia crassipes) and removal of silt and maintenance
dredging of the canal bed in selected locations. The bank protection
measures are proposed based on the designs developed following
the detailed model analyses and alternative comparisons, as
elaborated in the Design Report by the Lanka Hydraulic Institute
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(LHI). The Environmental Screening has been carried out based on
the interventions proposed and inundation assessments carried out
in accordance with the findings and recommendations of the said
report.
The detailed drawings of the proposed interventions for specific locations
are given in Annexure 4.
Project Management
Team
A Project Management Unit (PMU) was established under the Ministry of
Megapolis and Western Development (MMWD) to implement the
proposed development activities in Galle under the Strategic Cities
Development Project (SCDP).
Contact Persons:
Archt. Anura Dassanayake,
Project Director,
Strategic Cities Development Project of Ministry of Megapolis and
Western Development,
Tel: 0112 887320
Email: pdscdp14@gmail.com
Mrs. GangadariRanawaka,
Deputy Project Director(Environment),
Strategic Cities Development Project of Ministry of Megapolis and
Western Development,
Tel.: 0112 887320
E-mail: gangadariscdp@gmail.com
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5.0 Description of the existing environment
5.1 Physical features – Ecosystem components
Topography and
terrain
The topography of Sri Lanka is marked by great diversity caused by long years of faulting
and erosion of the landscape. The central mountainous region with the highest elevations
covered by virgin forests and grasslands rises up to about 2,500 m above mean sea level. The
surrounding plains, which rise to about 50 to 100 m above sea level, are largely used for
agriculture and homesteads, but still have virgin scrubland where the population distribution
is lower. This general topography of the country can be divided into three distinct
geographical areas or well-marked peneplains featuring the coastal belt, the plains, and the
central highlands.
The Galle district which incorporates the project area falls into the so called lowest peneplain
of Sri Lanka (after P.G. Cooray – Geology of Sri Lanka, 1984). The elevation variation of
Galle district situated in this coastal peneplain ranges to a maximum elevation of 150 m from
sea coast. The terrain in Galle area largely consists of gently undulating plains and low-lying
flatlands with a high density of drainage paths formulating a geography consisting of a mix
of land and water. The city has many canals and the 12-hectare (30-acre) Mahamodara Lake
situated in the downstream part of Kepu Ela.
The ground profile of the Moragoda Ela basin area is generally flat with ground level varying
approximately between 1.5 m AMSL & 10.0 m AMSL, except for the isolated ridges and
fragmentary blocks of hilltops located in the borderline, rising intermittently to the heights of
15.0~30.0 m AMSL.
The canal bed elevation for the selected cross drains of Package B
• Hirimbura Ela varies from -0.5 m AMSL and -0.63 m AMSL
• Bombe castle Ela Cross Drain 1varies from +0.65m AMSL and – 0.35m AMSL
The canal slope is also very minimal (~0.03%), causing stagnating flows with very
low flow velocity.
Soil (type and
quality)
The geology of Galle is representative of the geology of the South-western coast of Sri Lanka
and has existed for much of the Quaternary era. The coastline is characterized by estuarine
formations, however, a few kilometers upstream in the inland valleys, there is a high-level
gravel formation consisting of quartz pebbles embedded in a matrix of laterite separated with
pebble-free layers of laterite. The floodplains along the rivers consist mainly of alluvial
deposits.
A vast area (over 90%) of Sri Lanka is underlain by metamorphic crystalline rocks of
Precambrian age, which includes the project area and covers a variety of Gneisses. The
geology of Galle is representative of the geology of the south-western coast of Sri Lanka and
has existed for much of the Quaternary era. This is shown in the 1:10,000 and 1:50,000
geological maps of Galle region produced by the Geological Survey and Mines Bureau. The
typical rock types of this basement include Garnet sillimanite schist and gneiss, Quartz
peldspar granulite, Charnockitic gneisses, Pyriclacite and Charnockitic biotitic gneisses of
undifferentiated Highland Series.
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According to Survey Department soil maps (Annexure 3a &3b) the main soil types in the
project area are as follows.
• Red Yellow Podzolic soils with well-developed laterite and their drainage associates
• Alluvial soils of variable texture and drainage: flat terrain
• Regosols on beach sands: flat terrain
It is presumed that these site-specific features are the most important ones as the
environmental impact is considered.
Surface water
(sources, distance
from the site, local
uses and quality)
Sources
The most prominent source of surface water in the vicinity is Moragoda canal and its cross
drains
All two canals are connecting to Moragoda Ela at different locations.
Local uses
The two cross canals, Hirimbura Ela and Bombay Castle Ela plays an important role in
conveying surface drainage and flood waters. Although the local people do not derive other
benefits than diverting their surface drainage into this canal, the intrinsic function is vital and
most important in draining flood waters of the area. There are numerous illegal discharge
points of grey water from residences, commercial establishments located adjoining the canal
due to appalling level of water pollution, and no other local uses can be derived from the
water body.
Quality
Water quality analysis has been done for the main Moragoda Ela by the Industrial Technology
Institute (ITI) in September 2014.
Results of water quality analysis Upstream Middle stream Down stream
Turbidity (NTU) 8.8 2 <1
pH at 29˚C 6.69 7.44 7.33
pH (on-site) 6.99 7.44 7.33
Temperature (on-
site) ˚C
28 29 29
Electrical
conductivity
(μS/cm)
124 1218 32100
Salinity 0 0.4 20.1
Dissolved oxygen
(mg/L)
3.15 1.66 2.84
Total Suspended
solids (mg/L)
60 10 20
Total dissolved
solids (mg/L)
40 935 19755
BOD5 mgO2/L <2 3 <2
COD mgO2/L 60 30 40
Total coliform
(MPN)
1400 130000 49000
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Ground water
(sources, distance
from the site, local
uses and quality)
Sources
According to the Land Use Division of the Irrigation Department, the project area falls within
the local or discontinuous moderate to low aquifer in fractured rock. Only available source of
ground water in the project site is shallow wells. However, ground water as a source of water
is only been used for bathing at present. This is due to two reasons: availability of ample
water supplies by NWS&DB and ground water being saline.
Distance from the site
The ground water table is very shallow and is about 0.4 - 0.5 m on average close to the
Canal, and can be at a level from almost at surface up to 1.5 - 3.0 m.
Local uses
Only a handful of households use shallow wells to abstract water. Even those who have
shallow wells do not use water for daily consumption; they use the wells only occasionally
for bathing and washing of clothes.
Quality
The pH and salinity levels has been investigated by National Building Research Organization
(NBRO) for the selected locations along the main Moragoda canal (See Annexure 3c for map
of sampling site).
Results of Ground Water Quality analysis – pH and Salinity
Selection
Criteria
Sample
referenc
e
Depth of
the well
measured
from the
ground
surface
(m)
Dista
nce
from
the
canal
bank
(m)
Distanc
e from
the sea
outfall
(km)
Sampling
depth
measure
d from
the
ground
surface
(m)
pH
Salinity (ppt)
Low
tide
High
tide
Low
tide
High
tide
a
W1 3 250 4
1.5 S 5.6 at
29.00C
5.6 at
29.3 0C 0.039 0.040
2.5 B 6.4 at
29.20C
5.3 at
29.20C 0.039 0.039
W2 4 400 4
1.5 S 5.2 at
29.20C
5.1 at
29.40C 0.070 0.061
4 B 5.5 at
29.10C
5.0 at
29.10C 0.061 0.062
b
W3 3.5 200 3.5
2.0 S 6.4 at
28.90C
5.9 at
29.70C 0.138 0.129
3.0 B 6.5 at
29.10C
6.5 at
29.00C 0.267 0.320
W4 3.5 400 3.1
1.5 S 7.2 at
28.70C
7.2 at
28.80C 0.168 0.166
3.5 B 7.2 at
28.50C
7.2 at
29.80C 0.164 0.137
c
W5 3 400 2.6
1.5 S 6.4 at
28.70C
6.7 at
28.90C 0.088 0.081
2.5 B 6.3 at
28.70C
6.5 at
29.90C 0.081 0.079
W6 2.5 120 2.4
1.5 S 6.9 at
29.40C
6.5 at
28.40C 0.136 0.137
2.5 B 6.8 at
29.60C
6.5 at
28.40C 0.135 0.137
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W7 2.5 50 1.4
1.5 S 6.9 at
28.20C
6.6 at
29.60C 0.234 0.229
2.0 B 7.2 at
28.20C
6.6 at
29.30C 0.234 0.229
W8
350 1.2 1 B 7.1 at
28.40C
6.8 at
29.40C 0.523 0.530
In the baseline monitoring the two indicator parameters measured (pH and Salinity) to reveal
the existing salinity distribution show a closer relationship with combined influence of two
factors; the proximity to sea outfall and that to the canal. The locations closer to canal and
those in the closer proximity to sea outfall showed a higher salinity where as others showed
a relatively low salinity. Out of 8 sampling locations, W1 and W2 (salinity 0.039 ppt and
0.039ppt respectively), which fall in the no salinity influence zone showed the lowest values
comparable to natural levels where as W7 and W8 (0.234ppt and 0.529 ppt respectively) ,
located in the closest proximity of the sea showed highest salinities. This variation is well in
line with the explained tidal dynamics and canal hydrology.
Flooding The midstream catchment area has suffered from frequent flooding up to around two to three
times per year (Annexure 1c and 2a). Even though the canal stretch in the proposed project
area appear to have adequate drainage capacity to withstand 5- and 10-year return period
design peak discharges, the drainage flows are seemingly obstructed due to inadequate width
of canals and vegetation growth at canal banks. Some of the structures (mainly bridges)
constructed across the drainage flow paths act as obstacles, causing downstream backwater
effect leading to embankment overtopping and subsequent inundation in the low-lying
floodplain.
The terrain is either flat in most areas or consists of mild slopes, therefore flow velocities are
very low, causing flow stagnation in the downstream. After heavy storm events and
especially due to temporary blockage of existing storm water drainage system, the water
movement concentrates in the low-lying areas causing temporary ponding or minor flooding
in the adjacent localities, as has occurred in the recent past.
Tidal effects (on main drainage lines and sea outfall)
The tidal effects should be considered in determining design levels for the downstream
drainage structures including sea outfall. Due consideration should be given to maximum
tidal variations and maximum wave heights when establishing drainage line and sea outfall
design capacities.
Tidal Levels and Periods
The tide around Sri Lankan coast is mixed semi-diurnal type with two high waters and two
low waters occurring approximately every 24 hours. First high water is almost twice high
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than the second high water. Amplitude of the tide in the west coast sea where the proposed
project is located ranges from 35 cm at neap tide to 75 cm at spring tide.
Wave Heights, Periods, Dominant Directions and other Ancillary Offshore and Near
shore Wave Parameters
Directional wave measurements near the project area are not available. However, the wave
conditions in the area have been established by a wave transformation study. According to
Directional Wave Climate Study of Southwest Coast of Sri Lanka, dominant wave
characteristics of the project area can be summarized as follows.
Wave Frequency
Wave frequency has not been measured but seasonal variations need to be taken care of.
Such data are given below.
Waves, tides and ocean current regimes
Much of the swell that affects Sri Lanka originates in the South Indian Ocean under the
influence of westerly depressions and storms. This moves northwards and is felt most along
the coasts of the Southern half of the island. Most large waves have a southerly component,
but they rarely reach a height of over two meters. The highest waves are during the SW
monsoon season, but the effective fetch is only about 800 km between the Maldives Island
chain and Sri Lanka. During the SE monsoon, the northerly winds blow over short stretches
of water from the North, and even when blowing across the bay of Bengal, are not steady
enough to generate large waves. The period between tides is approximately 12 hours and is
thus semidiurnal.
Landslide Prone
Areas
There are no landslides prone areas in the area concerned.
Air quality
(any pollution
issues)
Heavy vehicle movements along major roads located nearby and other cross roads in the
project area lead to high levels of air pollutant emissions, such as dust including particulate
matter, smoke including CO, CO2, NOx, SOx etc. Such air pollution episodes can aggravate
during peak hours when traffic movements are impeded. Fugitive dust particles could escape
into the atmosphere during construction activities and during transportation and subsequent
storage and handling. Specially Beligaha and Kahaduwawatte Junction are more commercial
areas crossing RDA roads heading to Karapitiya. Emanation of foul odors from the canal,
especially during dry weather when water levels are low, could take place from rotting solid
wastes thrown in the water and sewage discharges.
Noise level and
vibration
Existing ambient noise and vibration levels in the area correspond to highly urban and light
industrial, businesses, hotel and restaurants. There is also heavy traffic noise from Hirimbura
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(Any anticipated
issues)
Road and Galle-Matara Road, a road which carries heavy traffic during peak hours as well as
during the night time. Intermittent high levels of noise and vibration levels are observed due
to train operations, which is also one of the busiest railway sections of the country. All these
urban activities contribute to high noise levels in the project area.
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5.2 Ecological features – Eco-system components
Vegetation
(trees, ground cover,
aquatic vegetation)
Aquatic vegetation such as Eichhornia crassipes (water hyacinth), Salvinia
molesta, Hydrilla verticillataand Nymphea spp (Water lilies), are predominant
in the concern area since the salinity is very low.
Along the canal, there are different types of vegetation covers including
grassland, cultivated lands and water logging areas with some mangrove species
and associated mangrove species. In addition, these land blocks consist of home
gardens mostly with coconut trees.
Presence of wetlands Along the two cross canals, it has been identified that some of the locations
predominately go under water. These areas are below the mean sea level and
flood water used to be retained for longer period and these areas show wetland
characteristics
Fish and fish
habitats
Godaya, Mada Kavaiya and lula types of fish species were observed during
the field visits. However, there are no records of observing any threatened or
endemic species in the canal.
# Common Name Scientific Name
Mural/ ලුලා Channastriata
Godayaග ාඩයා Rastrelligerkanagurta
MadaKanaza- මඩ කනයා Channapunctata
Birds (waterfowl,
migratory birds,
others)
Bird species found during field visits are given below:
# Common Name Scientific Name
Broun Headed Barbet /ප ාප ාස් පකාටපටෝරුවා Psilopogonzeylanicus
Common Babbler/ පෙමලිච්චා Turdoidescaudata
White Breasted Kingfisher/පිළිහුඩුවා Halcyon smyrnensis
Crow - කපුටා Corvusbrachyrhynchos
White-breasted Water hen/පකාරවක්කා Amaurornisphoenicurus
Drongo / කව්ඩා Dicrurusmacrocercus
Magpie Robin / ාන්කිරිත්තා Copsychussaularis
Common Tailorbird / බටිච්චා Orthotomussutorius
Spotted Dow / අළුපකාපබයියා Streptopeliachinensis
Comerent /දියකාවා Microcarboniger
Pigeon / පරවියා Columba livia
Red lapwing /රත්යිමල්කිර ා Vanellusindicus
Common Maina / මයිනා Acridotherestristis
Presence of special
habitat areas (special
designations &
There are no any specially identified habitats as sensitive zones along
Hirimbura Ela and Bombe Castle Ela.
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identified sensitive
zones)
Other features
Residential/Sensitive
Areas
(Eg, Hospitals,
Schools)
The area is predominantly densely populated. Hirimbura Ela and Bombe Castle
Ela within the city limits and they are commercial and residential areas where
the cross drains have been encroached mostly. Karapitiya Teaching Hospital
which is main government hospital in Southern province is located close
proximity to Bombe Castle Cross Drain. The effluent of the hospital is
discharged to Bombe Castle Cross Drain.
Traditional
economic and
cultural activities
No such activities are found in the vicinity.
Archeological
resources
No such artifacts are reordered in the vicinity.
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6. Public Consultation
# Name of person Representation Concern
1 I Ameema Shamila 3A/134, Anagarika Dharmapala
Mawatha, Karapitiya
Positive significant environmental
effect due to project intervention
Community awareness is needed to
control waste problem
Both side of the canal should be
concreted to protect the bank and
increase the flow rate
2 M.K. Piyasena 3C,/134, Anagarika Dharmapala
Mawatha, karapitiya, Galle
We are affected with flood & mosquito
problem as we resided near Bombe
Castle Ela
Direct Discharge of effluent from
Hospital is major reason for bad odour.
Construction of canal bunds is
important, Community awareness is
needed to control waste problem
3 A.A.F. Rismiya 72/2 Anagarika Dharmapala
mw., Karapitiya, Galle
Flood effect & bad smell are main
problems we faced
Project intervention will enhance the
conditions of environment.
4 A.G. Karunadasa 11/100 Anagarika Dharmapala
mw., Karapitiya, Galle
Willing to support the development
interventions and it will decries
unpleasant feeling of surround
environment & health issues due to
bad condition of the canal
Cleaning the canal regularly & proper
maintenance needed to value the
investments for rehabilitation
5 A.G. Somalatha 11/100 A, Bombe Castle Watta,
Karapitiya.
No environmental damaged due to
development of the canal
It enhance the environmental
conditions and uplift the life
conditions for the surrounding people.
We are mainly affected by bad smell
due to direct discharge of hospital
effluent & mosquito problem
Poor canal maintain are reasons for
canal pollution
6 M. Kadar 10/100, Karapitiya, Hiribura
Cross Rd., Galle
Solid waste & animal waste dumping
to the canal & poor canal management
are main reasons for flash flood
mosquito problems & bad odour
which affected social life along this
Canal.
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Canal cleaning, rubble wall & prevent
direct discharge of Hospital waste
effluent to the canal needed to control
this issues
No environmental damage due to
project interventions
7 A.H.N. Fathima 112, Hirimbura Cross Rd., Galle. Poor canal management & solid waste
dumping caused canal pollution
We are affected with bad smell &
mosquito breeding
Rehabilitation of canal is timely need
No significant damages to the
environment or social due to
development
8 U. W. Gamunu 36/A, Hiribura Cross Rd., Galle Highly concern about the land
acquisition and suggested to acquire
similar fragment from bother side of
the drain which will be fair for both
side affected parties.
It is better to establish proper
maintenance system with participation
of the community
9 Damith Dilruk 28/6, Hiribura Cross Rd., Galle. We are badly affected by bad smell,
mosquito breeding & health issues
Mainly due canal pollution by solid
waste dumping, sewerage, poor canal
management,
Introducing sewerage disposal system
& low enforcement to prevent waste
disposal to the canal is essential with
the development
10 M.J.M. Nahash No.34, Hiribura Cross Rd., Galle Canal bund preparation with solid
waste management needed for the
issues mosquito breeding, flooding &
unsafety (especially children)
No damages to the environment due to
development of Moragoda Ela and the
cross drains
11 Fathima Sihara 34/B - 2, Hiribura Cross Rd.,
Galle.
Bad smell is the main problem we have
to face
No significant damage due to project
interventions
Cleaning water & establishment of a
planed home garden system adjacent
to the canal
12 Umoor marshula 34/B -1, Hiribura Cross Rd.,
Galle.
Bad odour due to improper solid waste
management mechanism create the
social issues.
20
No significant damaged to the
environment if canal is not dredge
13 Fathima Fareeda 34/3-A, Hiribura Cross Rd.,
Galle.
Bad smell is the main problem
Establishment of strong walls for
canal, law enforcement for offenders
& fence along the canal
No severe damages to the environment
14 H.M.F. Hashira 34/4, Hiribura Cross Rd., Galle. Solid waste dumping by surrounding
community & outsiders
Canal pollution & bad odour are main
reasons
Canal bank protection is very
important
21
7. Environmental Effects and Mitigation Measures
7a. Screening for Potential Environmental Impacts
Screening question Yes No Significance of the effect
(Low, moderate, high)
1 Will construction and operation of the project involve
actions which will cause physical changes in the
locality
No
Most of the interventions which will be carried out along cross drains will
have no changes in topography other than widening at few locations,
deepening of drains, strengthening of the side walls with gabion structures or
retaining concrete structure, cover slabs, etc.
2 Will the project involve use, storage, transport,
handling or production of substances or materials
which could be harmful to human health or the
environment or raise concerns about actual or
perceived risks to human health?
Yes Low
Transport of material and construction activities, including excavation,
demolition of existing structure and material piles will emit dust and fugitive
particles which may pose a health hazard to vulnerable persons on temporary
basis. The winds will be the triggering factor for such impacts though it is
sporadic in nature.
3 Will the project produces solid wastes during
construction or operation?
Yes Low
During construction:
Removal of debris and nuisance weeds obstructing water flow from the
waterway area and removal of silt and maintenance removals of the drains
beds will produce sizeable amounts of solid waste.
There will be general spoilage (construction debris) produced during the
widening of drains, deepening, debris removal, lining of drains, etc.
In addition, constructing side walls and retaining walls along the drains is
expected to generate a small quantity of excavated material mixed with
bottom sediment which will need to be disposed safely so as not to pollute
22
the environment. An analysis of the bottom sediments of the Moragoda Ela
revealed that there is no significant contamination of harmful chemicals. The
catchment of Hirimbura & Bombe Castle Ela are the same as Moragoda Ela
at a much lower scale, hence it is safely assumed that the sediments of
Moragoda Ela is representative of its entire basin.
During operations
There will be material dredged and solid waste collected along drains etc
which need regular collection and disposal appropriately. In addition, debris
and sediments, floating matter, nuisance weeds such as Salvinia and other
solid waste due to surface runoffs can get collected along the drains that
needs proper disposal mechanism with the GMC. Due to regular cleaning of
side drains, culverts and road will too generate such material.
4 Will the project releases pollutants or any hazardous,
toxic or noxious substances to air?
Yes Low
Only fugitive particles emitted by machinery involved during construction
stage is of concern, but the significance is low.
5 Will the project cause noise and vibration or release
of light, heat energy or electromagnetic radiation?
Yes Moderate
The project activities will cause noise and vibration during demolition of
temporary structures along the drains, excavation, compaction, sheet pile
driving, gabion wall construction and during transport of material etc. These
impacts are temporary in nature and cause only inconvenience to the
neighboring people.
6 Will the Project lead to risks of contamination of land
or water from releases of pollutants onto the ground
or into surface waters, groundwater or coastal
wasters?
Yes Low
The canal bank/bed at the base of the gabions will need to be excavated to
build a consistent base layer for the structure. It will also be excavated for
maintenance dredging and cleaning. Such excavated material should be
23
disposed safely. Stock piling of excavated matter mixed with soft sediments,
soil, debris and other material may release pollutants back into surface waters,
groundwater or coastal waters. If the excavated material would contain
sediments contaminated with heavy metals, it would have to be appropriately
handled and disposed in order to avoid any potential environmental and health
risks to the residents and downstream marine ecosystems. However, in this
case there is no contamination issue involved.
7 Will the project cause localized flooding and poor
drainage during construction
Is the project area located in a flooding location?
Yes Low
The proposed interventions after being implemented can provide additional
conveyance capacity, thus, alleviating risk of flooding at 5- & 10-year design
return period peak flow conditions even under future land use scenario.
However, temporary blockage to existing flow paths and drainage patterns
may occur during the period of construction causing slightly increased
inundation risk.
Raised embankments and raised finish levels, stock piling of construction
debris and other materials may block existing drainage flow paths, causing
flow stagnation and localized flooding effects.
However, the proposed project area is not a flood prone area and practicing
proper construction practices like provision of improved drainage network,
maintaining naturally stable slopes, vegetation replanting/turfing, etc. will
improve drainage conditions, reducing flood risk during the construction
phase and in the aftermath of project completion.
24
8 Will there be any risks and vulnerabilities to public
safety due to physical hazards during construction or
operation of the Project?
Yes Low
Safety issue in terms of injuries caused by construction material, machinery
and falling into excavated trenches by neighbors and commuters could be
anticipated.
9 Are there any transport routes on or around the
location which are susceptible to congestion or which
cause environmental problems, which could be
affected by the project?
Yes Low
The roads are wide enough to allow for construction equipment and machinery
to be moved. However, impacts on residents and commuters near the canal
from restriction to access should be looked into. The residents will be
temporarily impacted by access restriction during construction works.
However, there are many connecting roads so that impact would be mitigated.
10 Are there any routes or facilities on or around the
location which are used by the public for access to
recreation or other facilities, which could be affected
by the project?
Yes Moderate
Realignment of bridges, provision of culverts and road side drains and
widening of the canal will cause disruptions to road users, both vehicular
traffic and pedestrians.
Use of some roads used as access for residential areas may be temporary
affected but not completely cut off.
11 Are there any areas or features of high landscape or
scenic value on or around the location which could be
affected by the project?
No Since project mainly deals with work along canals and roads, no impact is
anticipated.
12 Are there any other areas on or around the location
which are important or sensitive for reasons of their
ecology e.g. wetlands, watercourses or other water
bodies, the coastal zone, mountains, forests which
could be affected by the project?
No
No such sensitive areas are found in the project area other than the coastal
area.
25
13 Are there any areas on or around the location which
are used by protected, important or sensitive species
of fauna or flora e.g. for breeding, nesting, foraging,
resting, migration, which could be affected by the
project?
No No such areas are found.
Since the area has already been interfered by human activities, neither
important nor sensitive species of fauna or flora were found.
14 Is the project located in a previously undeveloped
area where there will be loss of green-field land
No No such green-field is encountered.
15 Will the project cause the removal of trees in the
locality?
No No large trees will be removed during construction of the gabion walls. In
the case of bank protection interventions there will not be a possibility of
removing large trees except shrub layer with low economic values.
16 Are there any areas or features of historic or cultural
importance on or around the location which could be
affected by the project?
No There are no historic or culturally important areas or features around the
project location.
17 Are there existing land uses on or around the location
e.g. homes, gardens, other private property, industry,
commerce, recreation, public open space, community
facilities, agriculture, forestry, tourism, mining or
quarrying which could be affected by the project?
No No existing land uses on or around the location are affected.
18 Are there any areas on or around the location which
are densely populated or built-up, which could be
affected by the project?
Yes Moderate
The project area is densely populated. The project will create moderate
impacts as the construction activities of the project would involve canal
widening and realignment of the banks, which would lead to, road access
restrictions etc. Transportation of building materials and construction
26
equipment, and storage of material will also cause inconveniences to road
users, and the neighborhood.
19 Are there any areas on or around the location which
are occupied by sensitive land uses e.g. hospitals,
schools, places of worship, community facilities,
which could be affected by the project
Yes Low
No such sensitive lands and the impacts due to construction is short term and
can be mitigated
20 Are there any areas on or around the location which
contain important, high quality or scarce resources
e.g. groundwater, surface waters, forestry, agriculture,
fisheries, tourism, minerals, which could be affected
by the project?
No The canal is the only freshwater resource that exist (being closed to the sea
the water quality in this stretch would make it more brackish) in the
immediate project area. However, water in the canal is polluted due to a high
concentration of urbanization with inappropriate waste disposal practices.
No significant additional impacts are expected due to proposed project
components and intended construction activities. Coastal area is not in the
immediate vicinity of the project.
21 Are there any areas on or around the location which
are already subject to pollution or environmental
damage e.g. where existing legal environmental
standards are exceeded, which could be affected by
the project?
Yes Low
Hirimbura and Bombe castle canals are highly or moderately polluted
depending on the seasonal effects. However, the addition from the project
seems to be very marginal or perhaps negligible.
27
7b. Environmental Management Plan
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
1.0 Construction Phase
1.1 Earthwork and Soil Conservation
1.1.1 Site Clearance and Land Development
During top soil removing, attention should be paid to maintain minimum
disturbances to soil cover
Water spraying should be done at a regular interval to avoid/mitigate dust
generation due to site clearance (refer sections 1.2.1 below on prevention
of dust generation)
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor Supervision
Consultant
(SC), ID, PMU,
LA
1.1.2 Disposal of Debris and Spoil
(a) All debris and residual spoil material including any left earth shall be
disposed only at locations approved by the engineer for such purpose and
subjected to the clauses 1.1.2.b and 1.1.2.c. It is estimated that 3685m3
will be removed during removal of debris in the canal. It is also
recommended to reuse as much as possible on-site for filling with the
approval of the Engineer. Places for temporary disposal and permanent
disposal of debris will be defined by the PMU environmental team in
consultation with the CEA.
Temporary
Disposal sites
identified by the
contractor and
approved by
Engineer
permanent
disposal site will
only be provided
by the PMU
Engineerin
g cost
contractor PMU, LA, ID,
SC
(b) The debris and spoil shall be disposed in such a manner that;
(i) Waterways and drainage paths are not blocked. Contractor will be
given a drainage plan for the disposal sites
(ii) the disposed material should not be washed away by runoff and
Applicable in and
around Heen Ela,
Heen E Applicable
along Hirimbura
Engineerin
g cost
-do- PMU, GMC, ID,
SC
28
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
(iii) should not be a nuisance to the public Ela and Bombe
Castle Ela
(c) Excavated earth materials and all debris materials shall be disposed on a
daily basis (or as necessary given the waste quantities generated and
onsite stockpiling space) without allowing to stockpile onsite, at
identified locations for debris disposal, recommended by the engineer.
During transportation, dispose materials should be covered with
tarpaulin.
Applicable at all
working areas
including
Hirimbura Ela and
Bombe Castle Ela,
borrow pits, quarry
sites, etc
do -do- -do-
(d) The contractor shall maintain a waste register in the site office which will
keep records of types and quantities of waste removed from the site and
places of disposal. The waste registry will be monitored by the PMU staff
during project implementation.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
and all locations
do -do- -do-
1.1.3 Protection of Ground Cover and Vegetation
(a) Construction vehicle, machinery and equipment shall be used and
stationed only in the areas of work and in any other area designated/
approved by the engineer.
Ad-hoc and scattered parking and placement of machinery should be
avoided to minimize harm to roadside ground cover.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
and all locations
- Contractor PMU/LA/SC/PI
D
(b) Contractor should provide necessary instructions to drivers, operators and
other construction workers not to destroy ground vegetation cover
unnecessarily. Designated vehicle parks and maintenance yards must be
informed to labour force.
-Do- -Do- -do- -do-
1.1.4 Burrowing of Earth
(a) Earth available from excavation for roadside drains as per design, may be
used as embankment materials, subject to approval of the engineer.
All excavation
areas and
embankments
- -do- -do-
29
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
(b) Contractor shall comply with the environmental requirements/guidelines
issued by the Central Environmental Authority (CEA) and the respective
local authorities with respect of opening burrow areas and with regard to
all operations related to excavation and transportation of earth from such
sites.
Selected borrow
sites
- -do- -do-
(c) Burrow areas shall not be opened without having a valid mining license
from the GSMB. The location, depth of excavation and the extent of the
pit or open cut area shall be as approved by the engineer.
All burrow sites
identified by the
contractor.
(d) Contractor can also find suitable soil materials for shoulder formation and
/ or road filling from currently operated licensed burrow pits in the
surrounding area, subject to approval of the Engineer
All burrow sites
identified by the
contractor.
(e) All burrow pits/areas should be rehabilitated at the end of their use by the
contractor in accordance with the requirements/guidelines issued by the
CEA/GSMB and the respective local authority.
All burrow sites
identified by the
contractor
Engineerin
g cost
-do- -do-
(f) Establishment of burrow pits/areas and its operational activities shall not
cause any adverse impact to the properties and shall not be a danger or
health hazard to the people living around.
All excavation
areas, slopes and
burrow sites
- -do- -do-
(g) Contractor shall take all steps necessary to ensure the stability of slopes
in burrow pits.
Please refer a general guideline for burrow pit management in annex 7.
All excavation
areas, slopes and
burrow sites
Engineerin
g cost
-do- -do-
1.1.5 Prevention of soil erosion
(a) The work, permanent or temporary shall consist of measures as per design
or as directed by the engineer to control soil erosion, sedimentation and
water pollution to the satisfaction of the engineer. Typical measures
include the use of berms, dikes sediment basins, fiber mats, mulches,
grasses, slope drains and other devices. All sedimentation and pollution
control works and maintenance thereof are deemed, as incidental to the
earthwork or other items of work and no separate payment will be made
for their implementation.
Applicable along
Applicable along
Hirimbura Ela
and Bombe Castle
Ela and all
locations
Engineerin
g cost
Contractor PMU,SC, PID,
LA
30
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
(b) During rehabilitation/reconstruction of roadside drainage, temporary
drainage paths must be erected to drain rain water properly and to avoid
on-site ponding.
These temporary drains should include silt traps or any other sediment
trapping measures to minimize silt carrying runoff generated from the
site.
Applicable along
Applicable along
Hirimbura Ela and
Bombe Castle Ela
and all locations
Engineerin
g cost
Contractor PMU,SC,PID,
LA
(c) To avoid siltation in the waterways crossing the project site, temporary
drainage paths from construction sites will not be directly sent to the Heen
Ela or selected existing cross canals without passing through a silt trap.
-do- Engineerin
g cost
Contractor PMU,SC,PID,
LA
(d) Barricades such as humps will be erected at excavated areas for culverts,
toe walls, filling and lifting with proper sign boards, as some work in
these sections will have to be stopped during heavy rains due to heavy
erosion. To prevent soil erosion in these excavated areas, proper earth
drain system with measures for silt trapping should be introduced during
work implementation.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU,SC,PID,
LA
(e) Embankment slopes, slopes of cuts, etc shall not be unduly exposed to
erosive forces. These exposed slopes shall be graded and covered by grass
or geotextile as per the specifications.
All fills, backfills and slopes should be compacted immediately to reach
the specified degree of compaction and establishment of proper mulch.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU,SC,PID,
LA
(f) Work that lead to heavy erosion shall be avoided during raining season.
If such activities need to be continued during rainy season prior approval
must be obtained from the Engineer by submitting a proposal on actions
that will be undertaken by the contractor to prevent erosion.
-do- - -do- -do-
1.1.6 Contamination of soil by fuel and lubrications
(a) Vehicle/machinery and equipment servicing and maintenance work shall
be carried out only in designated locations/ service stations approved by
the engineer
Service yards to be
used for vehicle
servicing along
Applicable along
Engineerin
g cost
Contractor PMU, LA,
CEA,/SC,PID
31
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
Hirimbura Ela and
Bombe Castle Ela
(b) Approval from CEA in the form of an Environmental Protection License
(EPL) should be secured by the contractor if he intends to establish his
own vehicle servicing yard
-do- - -do- PMU/SC/PID
(c) Waste oil, other petroleum products and untreated wastewater shall not
be discharged on ground so that to avoid soil pollution. Clean up
measures shall be taken against pollution of soil by spillage of
petroleum/oil products from storage tanks and containers. All waste
petroleum products shall be disposed of in accordance with the guidelines
issued by the CEA or the engineer. Waste disposal guidelines attached as
Annex 6.
Servicing yards to
be used for vehicle
servicing and
where vehicles
will be temporarily
stationed
Engineerin
g cost
-do- PMU, LA,
CEA,/SC
(d) Sites used for vehicle and plant service and maintenance shall be restored
back to its initial status. Site restoration will be considered as incidental
to work.
New servicing
yards developed
by the contractor
for the project
Engineerin
g cost
-do- -do-
1.1.7 Disposal of harmful construction wastes
(a) Prior to the commencement of work, Contractor shall provide list of
harmful, hazardous and risky chemicals/ material that will be used in the
project work to the Engineer. Contractor shall also provide the list of
places where such chemicals/materials or their containers or other
harmful materials have been dumped as waste at the end of the project,
via the waste register.
Locations
identified to store
chemicals and
waste disposal
- Contractor PMU/ LA/
CEA/SC/PID
(b) All disposal sites should be approved by the Engineer and approved by
CEA and relevant local authority.
-Do- Engineerin
g cost
-do- PMU,/SC/ID
(c) The contractor shall clean up any area including water-bodies
affected/contaminated (if any) as directed by the engineer at his own cost.
All affected water
bodies closer to
material storage
and waste disposal
sites
Engineerin
g cost
-do- -do-
1.1.8 Quarry operations
32
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
(a) The contractor should utilize existing quarry sites available in the project
influential area as much as possible which are approved by GSMB with
valid EPL and Industrial Mining Licenses (IML);
Selected quarry sites should have proper safety measures such as
warnings, safety nets etc., and third party insurance cover to protect
external parties that may be affected due to blasting.
If new quarries are to be opened, prior approval should be obtained from
GSMB, CEA and local authorities.
All, quarry sites
which will be used
during
construction
phase.
Engineerin
g cost
Contractor PMU, GSMB,
CEA, LA, SC,
PID
(b) It is recommended not to seek material from quarries that have ongoing
disputes with community.
-Do- - -do- -do-
(c) The maintenance and rehabilitation of the access roads in the event of
damage by the contractors operations shall be a responsibility of the
contractor.
-do- Engineerin
g cost
-do- -do-
1.2 Storage and handling of construction material
1.2.1 Emission of dust
(a) Storage locations of sand, metal, soil should be located away from
settlements and other sensitive receptors and covered (with artificial
barriers or natural vegetation). No stockpiling or storage activities are
allowed blocking/disturbing Temple, Mosques, schools etc., during
the construction and rehabilitation of silt traps.
Measures given under 1.5.1 (c), (d), (e) should be considered within
material storage site to minimize dust during handling of material.
All access roads within storage sites should be sprinkled with water for
dust suspension.
At all material
storage locations
(stock piles of
sand, metal)
Engineerin
g cost
Contractor PMU/SC/PID,
LA
1.2.2 Storage of fuel, oil and chemicals (avoid fumes and offensive odour)
33
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
(a) All cement, bitumen (barrels), oil and other chemicals should be stored
and handled on an impervious surface (metal sheet and concrete slab)
above ground level.
Storage facility of cement, bitumen (barrels), oil and other chemicals
should be an enclosed structure ensuring that no storm water flows in to
the structure.
Alternatively, if the storage is not enclosed a ridge should be placed
around the storage facility to avoid runoff in to the structure.
Adequate ventilation should be kept to avoid accumulation of fumes and
offensive odour that could be harmful to material handlers.
Measures given under clause 1.10 should be considered to avoid any
accidents and risks to worker population and public.
At all material
storage locations
(cement, bitumen,
fuel, oil and other
chemicals used for
construction
activities)
Engineerin
g cost
Contractor PMU/SC/PID,
LA
1.2.3 Transportation of material
(a) The contractor should avoid over loaded trucks to transport material to
construction sites. During transportation, materials should be covered
with tarpaulin. Please refer section 1.9.2 on traffic management for
transport routes and times of the day that transport of construction
material to the site is allowed.
Within the project
area of Applicable
along Hirimbura
Ela and Bombe
Castle Ela
- Contractor PMU/SC/PID,
LA
1.3 Water – Protection of Water Sources and Quality
34
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
1.3.1. Loss of minor water sources and disruption to water users
(a) Contractor should make employees educate on water conservation and
waste minimization practices in the construction process.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
and
at worker camps
- Contractor PMU/SC/PID
(b) Arrange adequate supply of water for the project purpose throughout the
construction period. Do not obtain water for project purposes, including
for labour camps, from public or community water supply schemes
without a prior approval from the relevant authority.
Do not extract water from ground water or surface water bodies without
the permission from Engineer & relevant authority. Obtain the permission
for extracting water prior to commencement of work, from the relevant
authority.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
and at worker
camps
-do- PMU/SC/PID
(c) Contractor shall protect the natural freshwater streams from any
contamination and disruption to water flow. Minimize construction
works during heavy rain seasons to avoid streams are being polluted.
A buffer zone (minimum 10 meters) shall be maintain between the
construction boundary and the water sources at all times possible, with
any other mitigation, as deemed necessary, to avoid contaminated runoff
from getting in.
In case, closure of such sources is required on a temporary basis,
contractor shall provide alternative arrangement for supply. Alternative
sources such as wells thus provided should be within acceptable distance
to the original sources and accessible to the affected community.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
and at worker
camps
-do- PMU/SC/PID
(e) Apply best management practices to control contamination of run-off
water during maintenance & operation of equipment.
Maintain adequate distance between stockpiles & the water bodies as
referred under 1.3.1 (c) to control effects to natural drainage paths.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
-do- -do-
35
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
and at worker
camps
1.3.2 Siltation into water bodies
(a) Contractor shall take measures to prevent siltation of streams and Wells
(if any) as referred under 1.3.1 (c), as a result of construction work
including, construction of temporary / permanent devices to prevent
water pollution due to siltation and increase of turbidity. These shall
include the measures against erosion as per 1.1.5 measures.
The Contractor shall carry out following mitigation measures during the
rehabilitation of Hirimbura and Bombe Castle canals to prevent water
pollution due to siltation and increase of turbidity.
1. Turbidity Curtain
just before
Bombe Castle
Ela connecting
point to
Moragoda Ela at
cahainage
0+1647
2. Silt traps at
chainage 0+1420
across Bombe
Castle Ela and
chainage 0+930
across Hirimbura
Ela Please See
Annexure 11
Applicable along
Hirimbura Ela and
Bombe Castle Ela
and at worker
camps.
Engineerin
g Cost
-do
-do-
Contractor
-do-
-do-
PMU, GMC, SC
-do
-do-
(b) Construction materials containing small / fine particles shall be stored in
places not subjected to flooding and in such a manner that these materials
will not be washed away by runoff.
-do- -do-
(c) Temporary soil dumps should be placed at least 50m away from these
specified streams,
-do- -do-
(d) If temporary soil piles are left at the site for a long time those piles should
be covered with thick polythene sheets
-do- -do-
36
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
Lightweight polyethylene fabric to cover stockpiles
-do-
-do-
-do-
-do-
(e) All fills, back fills and slopes should be compacted immediately to reach
the specified degree of compaction and establishment of proper mulch
-do- -do-
1.3.3 Alteration of drainage paths
(a) Contractor shall not close or block permanently. If diversion or closure
or blocking of canals and streams is required for the execution of work
(e.g. for construction of culverts), contractor must first obtain the
Engineer’s approval in writing. Contractor shall carry out an investigation
and report to the Engineer, if an investigation is requested by the
Engineer. Contractor shall also obtain the approval from the relevant
agencies such as Provincial Irrigation Department (PID) /Divisional
Secretary (DS) prior to such action is taken. Contractor shall restore the
Applicable along
and at worker
camps
Engineerin
g cost
Contractor PMU, PID
DS/ASD/SC
37
Environmental
Issues
Protection and preventive measures Locations/
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Mitigation
cost
Institutional Responsibility
Implement Supervision
drainage path back to its original status once the need for such diversion
or closure or blockage is no longer required.
(b) Debris and spoil shall be disposed in such a manner that waterways and
drainage paths are not blocked.
-do- -do-
1.3.4. Contamination of water from construction wastes
(a) The work shall be carried out in such a manner that pollution of natural
water sources located closer to the Heen Ela and connected canals are
avoided. Measures as given in 1.1.5., 1.1.6, 1.1.7, 1.3.2 and 1.3.6 (a) &
(e) clauses shall be taken to prevent the wastewater produced in
construction from entering directly into wells and streams.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU, LA,
CEA,SC
(b) Avoid / minimize construction works near / at such drainage locations
during heavy rains seasons.
-do- - -do- -do-
(c) The discharge standards promulgated under the National Environmental
Act shall be strictly adhered to. All waste arising from the project is to be
disposed in a manner that is acceptable to the engineer and as per the
guidelines/instructions issued by the CEA. Refer 1.1.7 and 1.10.3
hazardous waste section and waste disposal section. See Annex 9 for
Environmental Pollution Control Standards.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
-do- -do-
1.3.5. Contamination from fuel and lubricants
(a) All vehicle and plant maintenance and servicing stations shall be located
and operated as per the conditions and /or guidelines stipulated under the
EPL issued by CEA. In general, these should be located at least 200m
away from water bodies and wastewater shall not be disposed without
meeting the disposal standards of the CEA. Wastewater from vehicle and
plant maintenance and servicing stations shall be cleared of oil and grease
and other contaminants to meet the relevant standards before discharging
to the environment. Refer Annex 9.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU, LA,
CEA,SC
(b) Vehicle, machinery and equipment maintenance and re-filling shall be
done as required in clause 1.1.5.to prevent water pollution as well.
All vehicle yards,
servicing centers
Engineerin
g cost
-do- -do-
1.3.6.
Locating, sanitation and waste disposal in construction camps
38
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Institutional Responsibility
Implement Supervision
(a) Locations selected for labour camps should be approved by the engineer
and comply with guidelines/ recommendations issued by the CEA/Local
Authority (LA). Erection of labourer camps should not be located within
200m from waterways (onsite or offsite) or near to a site or premises of
religious, cultural or archeological importance and school.
All temple,
Mosques, Schools
etc.along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU, LA, CEA,
DWLC, DoF,
SC
(b) Labour camps shall be provided with adequate and appropriate facilities
for disposal of sewerage and solid waste. The sewage systems shall be
properly designed, built and operated so that no pollution to ground or
adjacent water bodies/watercourses takes place. Garbage bins shall be
provided the camps and regularly emptied. Garbage should be disposed
off in a hygienic manner, to the satisfaction of the relevant norms.
Compliance with the relevant regulations and guidelines issued by the
CEA/LA shall be strictly adhered to.
At all labour
camps
Engineerin
g cost
-do- -do-
(c) Contractor shall ensure that all camps are kept clean and hygienic.
Necessary measures shall be taken to prevent breeding of vectors
-Do- Engineerin
g cost
-do- -do-
(d) Contractor shall report any outbreak of infectious disease of importance
in a labour camp to the engineer and the Medical Officer of Health
(MOH) or to the Public Health Inspector (PHI) of the area immediately.
Contractor shall carry out all instructions issued by the authorities, if any.
Within these
project sites with
special attention
near to labour
camps
-do- -do-
(e) Contractor shall adhere to the CEA recommendations on disposal of
wastewater. Wastewater shall not be discharged to ground or waterways
in a manner that will cause unacceptable surface or ground water
pollution.
At all labour
camps
-do- -do-
(f) All relevant provisions of the Factories Act and any other relevant
regulations aimed at safety and health of workers shall be adhered to. See
Annex 8 for Factory Ordinance and ILO guidelines.
-Do- -do- -do-
(g) Contractor shall remove all labour camps fully after its need is over,
empty septic tanks, remove all garbage, debris and clean and restore the
area back to its former condition.
-Do- Engineerin
g cost
-do- -do-
Wastage of water and waste minimization
39
Environmental
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Protection and preventive measures Locations/
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Institutional Responsibility
Implement Supervision
1.3.7.
(a) The contractor will minimize wastage of water in the construction
process/operations by reusing water as much as possible, utilizing only
the required amount of water for the construction works etc.
The contractor shall maintain a record of usage of water for various
purposes and sources tapped.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU, LA,
CEA,SC
1.3.8. Extraction of water
(a) Refer section 1.3.1 (a) and (b)
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU, LA,SC
(b) The Contractor may use the natural sources of water subject to the
provision that any claim arising out of conflicts with other users of the
said natural sources of water shall be made good entirely by the
contractor should any conflict or social protects arises, the contractor
shall seek alternative sources.
At all natural water
sources used for
construction works
-do- PMU, LA,SC
1.4. Flood Prevention
1.4.1. Blockage of drainage paths and drains
(a) Contractor shall not close or block the existing drains permanently. If
diversion or closure or blocking of canals and streams is required for the
execution of work (e.g. for construction of culverts), contractor must first
obtain the Engineer’s approval in writing. Contractor shall carry out an
investigation and report to the Engineer, if an investigation is requested
by the Engineer. Contractor shall also obtain the approval from the
relevant agencies such as Provincial Irrigation Department (PID)
/Divisional Secretary (DS) prior to such action is taken. Contractor shall
restore the drainage path back to its original status once the need for such
diversion or closure or blockage is no longer required.
All drainage paths
closer to the
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU, PID/
DS/ASD/SC
(b) Contractor’s activities shall not lead to flooding conditions as a result of
blocked drainage paths and drains. The contractor shall take all measures
At the locations
where
embankments, at
Engineerin
g cost
Contractor PMU,SC, PID,
GMC
40
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
necessary or as directed by the Engineer to keep all drainage paths and
drains clear of blockage at all times.
locations where
bridges and
culverts are to be
repaired /
reconstruction.
(c) Debris and spoil shall be disposed in such a manner that waterways and
drainage paths are not blocked.
-do- -do-
(d) If flooding or stagnation of water is caused by contractor’s activities,
contractors shall provide suitable means to (a) prevent loss of access to
any land or property and (b) prevent damage to land and property.
Contractor shall compensate for any loss of income or damage as a result.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU,SC, ID
1.5 Air Pollution (Refer Air Quality standards given under the Annex 9)
1.5.1. Generation of Dust
(a) The contractor shall effectively manage the dust generating activities
such as ground clearing, topsoil removal, handling and transporting of
sediments, sand, rubble, bitumen, and cement during periods of high
winds or during more stable conditions with winds directed towards
adjacent residences and other facilities.
Along Hirimbura
Ela and Bombe
Castle Ela where
earth work will
take place, storage
locations of sand,
rubble, bitumen,
cement and all sub
roads used for
material
transportation,
paying special
attention to
sensitive locations
Engineerin
g cost
Contractor PMU,SC
(b) All stockpiles shall be located sufficiently away from sensitive receptors
such as Temples, Schools, streams crossing the road, water logging area,
etc.
-do- -do-
(c) All vehicles delivering materials shall be covered to avoid spillage and
dust emission.
-do- -do-
(d) The Contractor should avoid, where possible and take suitable action to
prevent dirt and mud being carried to the roadway (particularly following
wet weather).
-do- -do-
(e) The contractor should enforce vehicle speed limits to minimize dust
generation.
-do- -do-
(f) The Contractor shall employ a water truck to sprinkle water for dust
suppression on all exposed areas as required (note: the use of wastewater
/ waste oil for dust suppression is prohibited)
-do- -do-
(g) All cleared areas shall be rehabilitated progressively. -do- -do-
41
Environmental
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Institutional Responsibility
Implement Supervision
(h) All earthwork shall be protected in a manner acceptable to the minimized
generation of dust.
-do- -do-
(i) All existing roads used by vehicles of the contractor or any of his sub-
contractor or supplies of materials or plant and similar roads which are
part of the works shall be kept clean and clear of all dust/mud or other
extraneous materials dropped by such vehicles or their tyres.
-do- -do-
(j) Clearance shall be affected immediately by manual sweeping and
removal of debris, or, if so directed by the Engineer, by mechanical
sweeping and clearing equipment. Additionally, if so directed by the
Engineer, the road surface will be hosed or sprinkled water using
appropriate equipment.
-do- -do-
(k) Plants, machinery and equipment shall be handled (including
dismantling) so as to minimize generation of dust.
-do- -do-
(l) The contractor shall take every precaution to reduce the level of dust
emission from the hot mix plants and the batching plants up to the
satisfaction of the Engineer in accordance with the relevant emission
norms.
-do- -do-
(m) The hot mix plant be sited in accordance with CEA guidelines and
operated with an EPL. The hot mix plants shall be fitted with the
requirements of the relevant current emission control legislation.
-do- -do-
1.5.2 Odour and offensive smells
(a) Contractor shall take all precautions such as storing all chemicals used
for construction works in properly closed containers with good
ventilations to prevent odour and offensive smell emanating from
chemicals and processes applied in construction works or from labour
camps. In a situation when/where odour or offensive smell does occur
contractor shall take immediate action to rectify the situation. Contractor
is responsible for any compensation involved with any health issue arisen
due to bad odour and offensive smells.
Along Hirimbura
Ela and Bombe
Castle Ela
including all sites
used for store all
chemicals and
places where
chemical reactions
take place.
Engineerin
g cost
Contractor PMU, CEA, LA,
SC, PID
(b) Refer 1.3.6 (b)
At all labour
camps
Engineerin
g cost
-do- -do-
42
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Institutional Responsibility
Implement Supervision
1.5.3 Emission from construction Vehicles, Equipment and Machinery
(a) The emission standards promulgated under the National Environment Act
shall be strictly adhered to. Refer Annex 8.
All plants,
machinery and
vehicles used for
construction
- Contractor PMU, CEA,
LA,SC
(b) All vehicles, equipment and machinery used for construction shall be
regularly serviced and well maintained to ensure that emission levels
comply with the relevant standards.
-Do- Engineerin
g cost
-do- -do-
(c) Contractor should obtain the certificate issued by the Vehicular Emission
Test (VET) for all construction vehicles, plants and other machineries and
it should be renewed annually.
Submit all the details to the engineer.
-Do- -Do- -do- -do-
1.6. Noise Pollution and Vibration
1.6.1 Noise from Vehicles, Plants and Equipment
(a) All machinery and equipment should be well maintained and fitted with
noise reduction devices in accordance with manufacturer’s instructions.
During construction, noise and vibration should not exceed 75 dB day
time and 55 dB during night time. See Annex 8 for Noise level standards
given under the Environmental Pollution Control Standards.
All machinery and
vehicles used for
silt traps
construction works
-Do- Contractor PMU, LA,SC
(b) If the construction sites is within 150m to the nearest habitation, noisy
construction work such as crushing, concrete mixing and batching,
mechanical compaction, etc., should be stopped between 20.00 hours to 06.00
hours.
Noise generating equipment shall not be used during noise sensitive times of
the day where noise sensitive sites such as the school and temples mosques
etc. compacting activities will be restricted during school hours near the
schools.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
and
Sensitive locations
-
-do- -do-
(c) All vehicles and equipment used in construction shall be fitted with
exhaust silences. During routine servicing operations, the effectiveness
of exhaust silencers shall be checked and if found to be defective shall be
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
-do- -do-
43
Environmental
Issues
Protection and preventive measures Locations/
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cost
Institutional Responsibility
Implement Supervision
replaced. Notwithstanding any other conditions of contract, noise level
from any item of plant(s) must comply with the relevant legislation for
levels of sound emission. Non-compliant plant shall be removed from
site. See Annex 8.
(d) Noise limits for construction equipment used in this project (measured at
one meter from the edge of the equipment in free field) such as
compactors, rollers, front loaders, concrete mixers, cranes (moveable),
vibrators and saws shall not exceed 75 dB(A). See Annex 8.
All equipment,
machinery and
vehicles used for
construction works
- -do- -do-
(e) Maintenance of vehicles, equipment and machinery shall be regular and
proper, to the satisfaction of the Engineer, to keep noise from these at a
minimum.
-Do- Engineerin
g cost
-do- -do-
(f) Workers in vicinity of strong noise, and workers working with or in
crushing, compaction, batching or concrete mixing operations shall be
provided with protective gear. Refer safety section 1.10.1 and 1.10.2
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
-do- -do-
1.6.2 Vibration
(a) Contractor shall take appropriate action to ensure that construction works
do not result in damage to adjacent properties due to vibration. Refer
Annex 9 for standards.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU, SC, CEA
(b) Prior to commencement of excavation, sheet piling, gabion construction
etc., the Contractor shall undertake a condition survey of existing
structures within the zone of influence, as agreed with the relevant
government agencies and the engineer.
-do- Engineerin
g cost
-do- -do-
(c) . -do- - -do- -do-
(d) The contractor shall modify the method of construction until compliance
with the criteria, if vibration levels exceed the relevant vibration criteria.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
- -do- -do-
1.7. Impacts to Flora
1.7.1 Loss or Damage to Trees and Vegetation
44
Environmental
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Mitigation
cost
Institutional Responsibility
Implement Supervision
(a) All works shall be carried out in a manner that the destruction to the flora and
their habitats is minimized. Trees and vegetation shall be felled / removed
only if that impinges directly on the permanent works or necessary temporary
works. In all such cases, contractor shall take prior approval from the
Engineer.
During the land clearance process, prevention of removal of trees as far
as possible. However, the total of 38 Nos. trees will have to be removed
during the site clearance process of the sub project. (Annexure 11:
Detailed of proposed trees to be removed)
The contractor shall inform the Forest Department on tree removal
timeframe in advance.
During removing trees, attention should be paid to maintain minimum
disturbances to soil cover and also care should be taken not to damage
adjoining trees.
It is recommended to plant trees along the possible stretches of channel
banks in order to enhance the environment and protecting the channel
bank.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
- Contractor PMU, DS, DoF,
CEA,SC
(b) Contractor shall make every effort to avoid removal and/or destruction of
trees of religious, cultural and aesthetic significance. If such action is
unavoidable the Engineer shall be informed in advance and carry out public
consultation and report on the same should be submitted to the Engineer.
-do- - -do- -do-
(c) Contractor shall adhere to the guidelines and recommendations made by
the Central Environmental Authority and the Forest Department, if any
with regard to felling of trees and removal of vegetation.
-do- - -do- -do-
(d) Removed trees must be handed over to the Timber Corporation. -do- - -do- -do-
(e) The contractor shall plant double the number of trees felled with native
tree species suitable for the location as identified by the Engineer.
The contractor shall build hardy structures around the trees for protection.
The contractor shall be responsible for ensuring the well-being of the
trees/plants until the end of the contract.
-do- - Contractor PMU, DS, DoF,
CEA,SC
45
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Mitigation
cost
Institutional Responsibility
Implement Supervision
1.7.2 Chance found important Flora
(a) During construction, if a rare/threatened/endangered flora species is
found, it shall be immediately informed to the PMU by the contractor
through the Engineer. All activities that could destroy such flora and/or
its habitat shall be stopped with immediate effect. Such activities shall be
started only after obtaining the Engineer’s approval. Contractor shall
carry out all activities and plans that the Engineer instructed him to
undertake to conserve such flora and/or its habitat.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor PMU, DoF,
DWLC,SC
1.8. Impact on Fauna
1.8.1. Loss, Damage or Disruption to Fauna
(a) All works shall be carried out in such a manner that the destruction or
disruption to the fauna and their habitats is minimum.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
Contractor RDA/PMU/SC
(b) Construction workers shall be instructed to protect fauna including wild
animals and aquatic life as well as their habitats. Hunting, poaching and
unauthorized fishing by project workers is not allowed.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineerin
g cost
-do- -do-
(d) Siting of all hot mix plants, crushing plants, workshops, depots and
temporary worker camps and storing of toxic and hazardous materials at
approved locations, and recycling and dumping of solid waste matter at
locations approved by local authorities, maintenance of vehicles and
equipment in good operable condition, ensuring no leakage of oil or fuel
and the fitting of proper exhaust baffles.
-do- Engineerin
g cost
-do- -do-
1.8.2 Chance found important Fauna
(a) During construction, if a rare/threatened/endangered fauna species is
found, it shall be immediately informed to the PMU by the contractor.
All activities that could destroy such fauna and/or its habitat shall be
stopped with immediate effect. Such activities shall be started only after
obtaining the Engineer’s approval. Contractor shall carry out all activities
and plans that the Engineer instructed him to undertake to conserve such
fauna and/or its habitat.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
- Contractor PMU,
DWLC/DoF,
SC
46
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Institutional Responsibility
Implement Supervision
1.9. Disruption to Users
1.9.1 Loss of Access
(a) At all times, the Contractor shall provide safe and convenient passage for
vehicles, pedestrians and livestock to and from side the road and property
accesses connecting the project road. Work that affects the use of side
roads and existing accesses shall not be undertaken without providing
adequate provisions to the prior satisfaction of the Engineer.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineering
cost
Contractor PMU/SC
(b) The works shall not interfere unnecessarily or improperly with the
convenience of public or the access to, use and occupation of public or
private roads, and any other access footpaths to or of properties whether
public or private.
-do- - -do- -do-
(c) On completion of the works, all temporary obstructions to access shall be
cleared away, all rubbish and piles of debris that obstruct access be
cleared to the satisfaction of the Engineer.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
Engineering
cost
-do- -do-
(d) Refer Social Screening/RAP and implement further mitigations required Applicable along
Hirimbura Ela and
Bombe Castle Ela
-Do- -do- -do-
(e) Use of flagmen and/or temporary traffic lights to control traffic flows at
constricted sites, including safe crossing for pedestrians especially at
town areas and near schools.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
-Do- -do- -do-
1.9.2 Traffic Jams and Congestion
(a) Detailed Traffic Control Plans shall be prepared and submitted to the
Engineer for approval 5 days prior to commencement of works on any
section of the road. The traffic control plans shall contain details of
temporary diversions, details of arrangements for construction under
traffic details of traffic arrangements after cession of work each day,
transport routes and times for construction vehicles.
In order to ease traffic within the city, transport of construction material
and machinery will be done prior to 6.00 am and after 6.00 pm.
If directed by the Engineer the contractor shall obtain the consent for the
traffic arrangement from the Local Police.
At all road
crossings and
bridges (if any)
along Hirimbura
Ela and Bombe
Castle Ela
- Contractor RDA/PMU,
LA/Police
47
Environmental
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Institutional Responsibility
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(b) Temporary diversion of traffic to facilitate construction work shall have
the approval of the Engineer. If directed by the Engineer the contractor
shall obtain the consent for the traffic arrangement from the Local Police.
-Do- - -do- -do-
(c) Special consideration shall be given in the preparation of the traffic
control plan to the safety of pedestrians and workers at night.
-Do- - -do- -do-
(d) The contractor shall ensure that the road surface is always properly
maintained, particularly during the monsoon so that no disruption to the
traffic flow occurs.
Road Crossings
along Hirimbura
Ela and Bombe
Castle Ela
Engineerin
g cost
-do- -do-
(e) The temporary traffic detours shall be kept free of dust by frequent
application of water.
-Do- -Do- -do- -do-
(f) Personnel used for traffic control by the contractor shall be properly
trained, provided with proper gear including communication equipment,
luminous jackets for night use. All signs, barricades, pavement markings
used for traffic management should be to the standards and approved by
the Engineer/ Police.
-Do- -Do- -do- -do-
(g) The manual of traffic control devices of RDA should be followed during
construction period in order to ensure the safety and traffic control.
-Do- - -do- -do-
48
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Institutional Responsibility
Implement Supervision
1.9.3 Traffic Control and Safety
(a) The Contractor shall take all necessary measures for the safety of traffic
during construction and provide, erect and maintain such barricades,
including signs, markings, flags, lights and flagmen as may be required
by the Engineer for the information and protection of traffic approaching
or passing through the road under improvement. The provision of traffic
safety measures shall be considered incidental to work and follow The
Institute for Construction Training and Development (ICTAD) guidelines
and instructions given by the Police, if any.
-Do- Engineerin
g cost
Contractor RDA/PMU, LA
(b) Informing the public through newspapers/ announcements/ radio/ TV etc.
about the construction activities in order to avoid any inconveniences due
to the construction activities.
Project influence
area
Engineerin
g cost
-do- -do-
(c) Provide information and boards at each road entry and exit point as
specified in the social document.
Basic info – times of closure, diversion routes etc
Project influence
area
Engineerin
g cost
-do- -do-
1.10. Accidents and Risks
1.10.1 Public and Worker safety
(a) All reasonable precautions will be taken to prevent danger of the workers
and the public from accidents such as fire, explosions, blasts, falling
rocks, falling to excavated pits, chemical sprays, unsafe power supply
lines etc.
Applicable along
Hirimbura Ela and
Bombe Castle Ela,
material storage
and worker camps
Engineerin
g cost
Contractor SC/PMU
49
Environmental
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cost
Institutional Responsibility
Implement Supervision
Safety Warnings and Awareness
(b) The Contractor shall comply with requirements for the safety of the
workmen as per the international labor organization (ILO) convention
No. 62 and Safety and Health regulations of the Factory Ordinance of Sri
Lanka to the extent that those are applicable to this contract. The
contractor shall supply all necessary safety appliances such as safety
goggles, helmets, masks, boots, etc., to the workers and staff. The
contractor has to comply with all regulations regarding safe scaffolding,
ladders, working platforms, gangway, excavations, trenches and safe
means of entry and egress. Refer Annex 10.
-Do- Engineerin
g cost
-do- -do-
50
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Protection and preventive measures Locations/
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Institutional Responsibility
Implement Supervision
Occupational Safety requirements
51
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Institutional Responsibility
Implement Supervision
1.10.2 Prevention of Risks of Electrocution
(a) All electrical wiring and supply related work should confirm to British
Standards (BS) or relevant Sri Lankan Standards. Adequate precautions
will be taken to prevent danger of electrocuting from electrical equipment
and power supply lines including distribution boards, transformers, etc.
Measures such as danger signboards, danger/red lights, fencing and lights
will be provided to protect the public and workers. All electric power
driven machines to be used in the construction shall be free from defect,
be properly maintained and kept in good working order, be regularly
inspected and as per BS provisions and to the satisfaction of the Engineer.
Applicable along
Hirimbura Ela and
Bombe Castle Ela,
material storage
and worker camps
-Do- Contractor SC/PMU
1.10.3 Risk at Hazardous Activity
(a) All workers employed in hazardous activities shall be provided with
necessary protective gear. These activities include mixing asphalt
material, cement, lime mortars, concrete etc., welding work, work at
crushing plants, blasting work, operators of machinery and equipment
such as power saws, etc.
Applicable along
Hirimbura Ela and
Bombe Castle Ela,
quarry site and
burrow pits
Engineerin
g cost
Contractor SC/PMU
(b) The use of any toxic chemical shall be strictly in accordance with the
manufacturer’s instructions. The Engineer shall be notified of toxic
chemicals that are planned to be used in all contract related activities. A
register of all toxic chemicals delivered to the site shall be kept and
maintained up to date by the Contractor. The register shall include the
trade name, physical properties and characteristics, chemical ingredients,
health and safety hazard information, safe handling and storage
procedures, and emergency and first aid procedures for the product.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
-Do- -do- -do-
1.10.4 Lead Pollution
(a) No paint containing lead or lead products will be used except in the form
of paste or readymade paint. Facemasks shall be supplied to workers who
are working in spray painting or scraping lead paints.
Workshops, yards
where spray
painting is done
- Contractor SC/PMU
1.11. Health and Safety
1.11.1 Prevention of Vector based Diseases
52
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
(a) Contractor shall take necessary actions to prevent breeding of mosquitoes
at places of work, labour camps, plus office and store buildings.
Stagnation of water in all areas including gutters, used and empty cans,
containers, tyres, etc shall be prevented. Approved chemicals to destroy
mosquitoes and larvae should be regularly applied.
All burrow sites should be rehabilitated at the end of their use by the
contractor in accordance with the requirements/guidelines issued by the
Central Environmental Authority and relevant local authorities
At worker camps,
stores, yards
Engineerin
g cost
Contractor SC/PMU, LA
(b) Contractor shall keep all places of work, labour camps, plus office and
store buildings clean devoid of garbage to prevent breeding of rats and
other vectors such as flies.
-Do- -Do- -do- -do-
1.11.2 Workers Health and Safety
(a) Contractor shall comply with the provisions in Health and Safety
regulations under the Factory Ordinance with regard to provision of
health and safety measures and amenities at work place(s). Refer Annex
8.
Applicable along
Hirimbura Ela and
Bombe Castle Ela,
workshops and
worker camps
- Contractor SC/PMU
1.11.3 First Aid
(a) At every workplace, first aid kit shall be provided as per the regulations.
At every workplace an ambulance room containing the prescribed
equipment and nursing staff shall be provided.
At Hirimbura Ela
and Bombe Castle
Ela, quarry,
crusher, concrete
batching plants,
workshops and
worker camps
Engineerin
g cost
Contractor SC/PMU, LA
1.11.4 Potable Water
(a) In every workplace and labour camps portable water shall be available
throughout the day in sufficient quantities.
At Applicable
along Hirimbura
Ela and Bombe
-Do- -do- -do-
53
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
Castle Ela and
worker camps
1.12 Protection of Archaeological, Cultural and Religious Places and Properties
1.12.1 Prevention of damage to Cultural and Religious Places and Properties
(a) During construction activities the contractor should take all necessary and
adequate care to minimize impacts on cultural properties which includes
cultural sites and remains, places of worship.
Workers should not be allowed to trespass in to such areas.
At Applicable
along Hirimbura
Ela and Bombe
Castle Ela and
worker camps
-Do- Contractor SC/PMU, Dpt.
Of cultural
affairs, LA,
Religious
leaders
1.12.2 Chance found Archaeological property
(a) All fossils, coins, articles of value of antiquity and structures and other
remains or things of geological or archaeological interest etc. discovered
on the site and/or during construction work shall be the property of the
Government of Sri Lanka, and shall be dealt with as per provisions of
Antiquities Ordinance of 1940 (Revised in 1956 & 1998) Refer
Annexure 9
At Applicable
along Hirimbura
Ela and Bombe
Castle Ela
- Contractor SC/PMU, DoA
(b) The contractor shall take reasonable precaution to prevent his workmen
or any other persons from removing and damaging any such article or
thing and shall, immediately upon discovery thereof and before removal
acquaint the Engineer of such discovery and carry out the Engineer’s
instructions for dealing with the same, awaiting which all work shall be
stopped within 100m in all directions from the site of discovery.
-Do- Engineerin
g cost
-do- -do-
(c) If directed by the Engineer, the Contractor shall obtain advice and
assistance from the Department of Archaeological of Sri Lanka on
conservation measures to be taken with regard to the artifacts prior to
recommencement of work in the area. Refer Annex 9for Chance Find
Procedures.
-Do- Engineerin
g cost
-do- -do-
1.13 Environmental Enhancement
1.13.1 Landscaping
54
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
(a) On completion of the works, the temporary structures shall be cleared
away in full, all rubbish burnt, waste dumps and septic tank shall be filled
and closed and roadsides, workplaces and labour camps, cleared and
cleaned.
-Do- -Do- -do- -do-
1.13.2 Utilities and Roadside Amenities
(a) Contractor shall replace all amenities that were removed/ relocated
during the construction unless the Engineer directed the contractor not to
do so.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
-Do- Contractor SC/PMU
1.14 Handling Environmental Issues during Construction
(a) The Contractor will appoint a suitably qualified Environmental & Social
Safeguard Officer following the award of the contract. The Safeguard
Officer will be the primary point of contact for assistance with all
environmental issues during the pre-construction and construction
phases. He/ She shall be responsible for ensuring the implementation of
EMP.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
- Contractor SC/PMU
(b) The Contractor shall direct the environmental & Social safeguard officer
responsible for community liaison and to handle public complaints
regarding environmental/ social related matters. All public complaints
will be entered into the Complaints Register. The Safeguard Officer will
promptly investigate and review environmental complaints and
implement the appropriate corrective actions to arrest or mitigate the
cause of the complaints. A register of all complaints is to be passed to the
Engineer within 24 hrs they are received, with the action taken by the
Environmental & Social Safeguard Officer on complains thereof.
-Do- - -do- -do-
(c) Contractor shall develop suitable method to receive complaints. The
complaint register shall be placed at a convenient place, easily accessible
by the public.
Applicable along
Hirimbura Ela and
Bombe Castle Ela
- -do- -do-
(d) Contractor shall prepare detailed Environmental Method Statement
(EMS) clearly stating the approach, actions and manner in which the
EMP is implemented at the time of bidding. It is required from the
contractor to prepare the EMS for each work site, if work will be carried
Throughout the
project
construction
period
- -do- -do-
55
Environmental
Issues
Protection and preventive measures Locations/
Project phase
Mitigation
cost
Institutional Responsibility
Implement Supervision
out at more than one site at once and time plan for implementation. The
EMS shall be updated regularly and submit for Engineers review.
56
57
8. Conclusion and Screening Decision
Summary of environmental effects:
Assuming that all mitigation measures are implemented as proposed, the following effects can be predicted
Key project activities Potential Environmental Effects Significance of the environmental effect with
mitigation in place
NS- Effect not significant, or can be rendered
insignificant with mitigation
SP - Significant positive effect
SN - Significant negative effect
U - Outcome unknown or cannot be predicted,
even with mitigation
NA – Not applicable
Site preparation including
provision of access roads,
material storage yards
Emission of dust
Generation of noise
Disturbance to pedestrian movement and
children who play on the road.
NS
NS
NS
Temporary shifting & relocating
of utility posts (electricity &
telecom).
Community will lose the services for short
periods.
Disturbance to pedestrian movement of the road
and children who play on the road.
NS
NS
58
Canal bank/bottom excavation,
dewatering and disposal of
bottom sediments
Excavation of the canal bank and bottom will
be necessary throughout canal. This will
generate a mixed spoilage consisting of soil
from the bank, solid waste and sediments from
the canal bed. Stock piling of such excavated
material, soil, debris and other material may
block surface drainage paths causing localized
flooding during constructional and operational
periods.
If not properly stored and adequately covered,
fine material washout may significantly
degrade surface water quality in canals and the
sea outfalls, while increasing risk of slope
failures, siltation and blockage of structures.
If not properly disposed, the material excavated
from the canal banks and bottom will pollute
water sources at locations where it is disposed.
The low water table in the area may cause
dewatering a crucial issue to reduce pore
pressure build up, slope instability and transport
of fines. Dewatering may also be needed to
carry out construction activities without
interruption in canal embankments especially
for gabion wall construction and widening, and
U
NS
NS
NS
59
for other excavated areas during the periods of
high groundwater table.
Dewatering may cause surface ponding of
removed water if proper drainage is not
allowed, especially when the upper soil layers
are saturated due to recent storm events.
Possibility exists for changing the water quality
of the public well that is used by the
community for bathing and washing.
NS
NS
Removal of temporary
structures, debris, demolition
waste and other solid waste
along the banks
Emission of dust
Generation of noise
Disturbances to local traffic and pedestrians
during storage of material and debris.
NS
NS
NS
Excavation for the gabion wall
construction and coffer damming
The construction of gabion walls along the
canal embankment for bank strengthening and
stabilization would require substantial
excavation close to the existing earth
embankments. Such deep excavations in
saturated weak soil would result in collapsible
vertical soil faces and increased susceptibility
to erosion and liquefaction leading to bank
failures.
NS
60
Coffer damming is required to contain and
divert movement of canal water and to provide
a reasonably dry construction area for the
laying of screed concrete base (if required by
design) and interlocking rubble work
arrangement during gabion wall construction.
The excavations in saturated soil may lead to
failure if collapsible soil faces and excavated
material will pose health and environmental
risks if not properly handled and disposed.
Excessive vibration during hydraulic driving of
sheet piles for coffer damming may weaken
adjacent soil layers while it may also affect
nearby foundations and other structures.
NS
NS
Material transport and storage
Emission of dust due to transport of material
Pedestrian movement and the children playing
on the road will be disturbed.
NS
NS
Construction of flow guidance
walls made of gabions at
upstream side of the Railway
bridge
Excavations beyond root depth may affect
existing trees and deep excavations may pose
risk of soil slope failures, disturbances to
structures, etc.
Improper alignment of gabion wall and
inadequate bottom support, as well as erosion
NS
NS
61
of soil loosening bank support will lead to
weakening of the interlocking of rubble used
causing immature failure of gabion structure
before its intended design life.
Pedestrian movement a will be disturbed, when
the building materials are handled using the
road. However this impact is very short time as
this impact will not exists though out the canal
at once. At a given time small section will be
affected.
NS
Reinstatement of storm water
drainage connections (Hume
pipes) to Main Drain through
gabion walls and introduction of
catch pits wherever required
Erosion of soil adjacent to structures will lead
to loosening of bank support. This will lead to
weakening of the interlocking of rubble used
causing immature failure of gabion structure
before its intended design life. Blockage due to
accumulation of fines due to cross drainage
flows will lead to pore pressure build-up behind
the gabion structure, leading to unbalanced
pressure forces, making the structure
susceptible to failure by toppling.
NS
Backfilling of banks behind the
gabions, turfing and replanting
of trees
Selection of below grade fill materials will not
attain required soil strengths after compaction
and will lead to differential settlements causing
the gabion walls to misalign and fail.
NS
62
Reinstatement of maintenance
road (width: 3 m) and
construction of road side drain
and cross drainage to the canal.
Lack of side drains and toe drains of adequate
sizes alongside of the maintenance roads will
lead to localized ponding in road pavements and
weakening of soil sub-base underneath.
Pedestrian movement and children playing on
the road will be disturbed. Especially children
will be subjected to accidents if construction
equipment are not handled taking extreme care.
NS
NS
63
9. Screening Decision Recommendation:
Final
recommendation
Majority of the potentially adverse effects can be classified as
general construction related impacts and are mitigatable with
known technology. Public concern does not warrant further
assessment. Therefore, a standalone Environmental Assessment
is not required and, the Environmental Management Plan
provided with this report would be sufficient to mitigate the
identified impact.
The following specific recommendations given in the EMP are
of utmost importance to be implemented.
Safe handling of material excavated from the canal including
transport must be implemented.
Construction debris management plan must be worked out and
implemented.
Heavy vehicles i.e., large trucks, should not be allowed for
material transport. Only small vehicles such as tractors, carts
will be promoted.
Construction activities should be encouraged during dry season
so that impacts due to water levels will be minimal.
64
10. EMP implementation responsibilities and costs
The overall responsibility of ensuring compliance with safeguard requirements for the
sub-project lies with the PMU and it has to be monitored very closely through the
supervision consultant. Specifically, it will be responsible for estimation of excavated
material quantities generated and guiding the contractor on suitable disposal methods.
The contractor will be responsible for implementing all other provisions in the EMP
that relate mostly to good construction planning, site management and public safety
practices.
The additional cost will be involved in implementing the EMP related to disposal of
excavated material. Environmental monitoring will be carried out largely through
compliance monitoring using the checklist provided in the EMF by the Environmental
Safeguard Officer of the contractor jointly.
As such, the only additional costs envisaged for the activities explained below:
Item Implementation
Responsibility
Disposal of
excavated material
To mitigate the disruptions to the residents during
constructions as well as reducing damage to road
network in the vicinity:
1. Work in the canal will only be carried out during
the dry months of the year.
2. Removed debris including the soft sediments
shall be temporary stored in a temporary
dumping site for a minimum of 7 days for drying,
but allowing free water flow through a silt trap to
the canal, and then be disposed to the permanent
storage site in dry condition. The Tenderer shall
provide a detailed program, with chainages,
machines deployed, assumed excavation rate and
disposal rates to demonstrate that the project can
be completed within the project period. The
Tenderer is reminded that the canal base will be
excavated up to -1.5m MSL and that the high tide
is +0.8m MSL as provided in the designs, and
calculations shall be supported with typical
excavation vs. temporary storage sectional
sketches.
5. The dried debris including soft sediment shall be
disposed to the permanent dumping site
Contractor
65
identified by the client and following steps shall
be followed by the contractor;
• Transportation of dry debris from
temporary storage sites safely according
to the conditions stipulated in EMP.
• Dumping site should be excavated under
the recommendations given with the soil
investigations and excavated soil should
be properly pilled in a suitable place as
mentioned in the EMP and shall be
utilized to establish the proposed soil cap.
Conceptual sketch of proposed Soil Cap
11. Screening Decision Recommendations:
Majority of the potential effects can be classified as general construction related impacts and
can be mitigated on site with proper engineering interventions. These potential impacts are
temporary in nature. Implementation of the Environmental Management Plan is sufficient to
mitigate the identified impacts.
Safe handling of demolished structures, excavated material including transport must be
implemented. Contractor shall responsible for safe handling of solid waste. It is also
recommended to establish silt traps at specified locations in the EMP in order to minimize the
siltation in the downstream while reducing the turbidity levels.
12. Details of Persons Responsible for Environmental Screening
Screening report completed by
Ajith U K Ethugala
Asst. Project Director (Env)
Date: 19th October 2016
66
ethugalascdp@gmail.com
Name/Designation/Contact information
Signature
Screening report reviewed by
GangadariRanawaka
Deputy Project Director (Env)
gangadariscdp@gmail.com
Name/Designation/Contact information
Date: 19thOctober 2016
Signature
References
Cooray, P.G.(1984). An introduction to the geology of Sri Lanka (Ceylon), with a
foreword by John Sutton, National Museums of Sri Lanka Publication, Colombo, Sri
Lanka.
Field Code Changed
Formatted: German (Germany)
Formatted: German (Germany)
Field Code Changed
67
Annex 1: Location Map a. Project Area (1: 50,000 topographic map of Survey Department, Sri Lanka)
68
b. Locations of canals and other main junctions, Moragodaela network is marked in blue, and the
catchment is marked in orange
69
c. Project Area (Proposed Drainage Improvements)
70
d. Proposed Drainage Improvement Packages (A, B, C, D, E and F )
71
Annex2: Terrain and Drainage Map
2a: Terrain and Drainage Map with Identified Flood Locations
72
2 b: Moragodaela catchment. (in left hand photo, catchment boundary is markedwith orange colour line, and the network of the cross drains used in
MIKE 11 model ismarked with blue colour lines, in right hand photo, Moragodaela network and catchmentis shown on top of the developed DTM)
73
2c: Locations of Bridges along Moragoda Ela
74
Annexure 3a: Soil map
Source: Survey Department, Sri Lanka
75
Annexure 3b: Geological map
Source: Survey Department, Sri Lanka
76
3c: Map of the ground water sampling locations
77
78
Annex 4:
4.a: Flat Pan and Longitudinal Section of Bombe Castle Cross Drain
79
80
81
82
4b: Flat pan and Longitudinal Cross Sections of Hirnbura Cross Drain
83
84
85
86
Annexure 5:
5 a: Summary of Procedure to Obtain Mining License for Borrow Pit Operation
1. Identify the site and verify ownership (land clearing)
2. Obtain letters of consent from the owners (Private / Government)
3. Contractor applies for site clearance from CEA
4. CEA may request anlEE or EIA to be carried out by the contractor
5. CEA gives clearance.
6. Contractor applies for Mining License (IML/A, IML/B or IML/C) from GSMB.
7. GMSB conducts joint inspection with a committee comprising with CEA, DS, and
PS.
8. Contractor has to make bank guarantee specified by the GSMB based on the
situation of the land, prior to issuing Mining License.
9. Contractor applies for Trade License from PS
5 b: Burrow Pit Management Guidelines
Development Plans of Borrow Pit and Quarry
A detailed development plan will be prepared by the selected contractor before the starts of extraction of
material from each borrow pit or quarry. Site development plans will augment this operations plan with
specific details. These development plans will include:
• Site layout and boundaries with the following provisions:
▪ Minimum setback of 31m from environmentally sensitive areas, a 100 m when feasible;
▪ Adequate room for all activities;
▪ Estimates of the resources to be extracted;
▪ Re-fuelling station with appropriate containment (if required);
▪ Stockpiling location;
▪ Dust and noise consideration;
▪ Waste management;
▪ Water management structures;
▪ Sequence of operation;
▪ Contractor involved in the operation;
▪ Site operating procedures; and
▪ Spill response procedures.
• Monitoring:
▪ Pit wall stability (for quarry);
▪ Extent of permafrost or ground-ice;
▪ Wildlife interactions or sightings; and
▪ Contingencies if changes to the original development scenario are required.
• Reclamation:
▪ Overburden replacement for site grading and re-contouring;
▪ Reclamation of natural drainage;
▪ Slope reconstruction;
▪ Removal of all garbage and debris;
▪ Removal of all temporary storages/structures/equipment;
▪ Reclamation of access road and block access (if required); and
▪ Replacement of all salvaged topsoil (if required).
87
Water Management
Site development must ensure positive drainage to prevent water pooling or flooding of the pit. The following
measures will be implemented to enhance re-establishment of equilibrium and minimization of erosion and
water ponding:
• Where possible, excavations will be minimized by utilizing above grade sources for material (hills
and swales), which will minimize water collection and drainage disruption;
• Cut and fill areas will be stabilized by constructing gentle slopes less prone to erosion.
• Cut and fill areas are expected to be relatively small in horizontal and vertical extent. The side slopes
of the borrow pits will be 1H:1V to 2H:1V, slightly gentler than natural slopes to reduce erosion;
• In low-lying areas where roadbed fill is in the order of 1m and permafrost can be expected to rise to
a meaningful degree, swales or culverts will be installed as part of road maintenance to prevent water
ponding;
• At closure, swales will be left in place, or alternatively, the road bed will be breached to allow
drainage;
• Borrow activities will be concentrated in few areas to limit the area of disturbance;
• Thawed layers will be removed sequentially;
• Areas of unexpected settlement will be filled to re-establish natural contours and eliminate water
ponding; and
• Borrow locations will be regularly inspected and unstable slopes regraded to eliminate depressions
and re-establish natural drainage patterns.
Resource Extraction
Extraction methods will depend on the nature of the material, equipment used, and extent and nature of the
permafrost.
Pits and quarries will not be excavated below the water table. If excavated material contains ground-ice, the
material will be stored at a location in the pit where it can thaw and drain.
Meltwater from such stockpiles must be treated for sediment control.
Machinery and equipment used on the site will be serviced on a routine maintenance schedule to ensure proper
operation and thus minimize emissions and noise.
If fuel storage is required, fuel tanks must be double-walled and placed within a containment berm. A well-
stocked spill response kit must be placed in the refueling area. Vehicles must be equipped with spill response
kits and drip trays. Used oil and fuel must not be stored at the pit/quarry sites.
A spill contingency plan must be in place for each quarry site. This plan outlines the logical order of how
operators should respond to spills, resources available onsite for spill response, and notification procedures.
Closure
The abandonment of the Project works and site reclamation for the quarries and borrow pits will be undertaken
at or before the close of the Project. The works will be integrated into the overall Project Abandonment and
Reclamation Plan, although separate closure plans for each quarry and borrow pit will be required. Closure of
the Project will involve removing construction materials, equipment and infrastructure and reclaiming the site
to self-sustaining productive ecosystem near its original condition.
In addition to the measures described above, the general abandonment and reclamation plans include the
following:
• Dismantle and transport all fuel/chemical storage and handling infrastructure to an approved facility
or for reuse where applicable;
• Dismantle and remove all buildings and related infrastructure;
▪ Any remaining concrete piles will be cut to below grade and covered with overburden.
• Dismantle water and sewage treatment plants for reuse or disposal at an approved facility;
• Remove all hazardous waste and explosives;
• Regrade as necessary to establish safe slopes and restore the natural drainage to the area; and
• Test soils and granular materials for hydrocarbon content; contaminated soils will be remediated.
88
Annex 6: Waste Management General Guidelines
General requirements
Priorities must be given for promoting source separation and sorted waste collection.
In the waste management plan priorities must be given on waste recycling and resource recovery and to reduce
the amount of final disposal
The existing recommended colour code must be used for waste collecting bins and garbage bags. (Please see
the Annexure A below)
When handling biodegradable waste and waste not containing any toxic contaminants priorities must be given
for biological processing such as composting, anaerobic digestion or any other appropriate biological
processing for stabilization of waste.
Land filling shall be encouraged to non-biodegradable, inert waste and other waste that are not suitable either
for recycling or for biological processing.
Labour Ordinance, Factory Ordinance, other relevant regulations and guidelines stipulated by the Central
Environmental Authority (CEA) approval procedures and relevant Local Authority approval procedures shall
be followed. All designs shall comply with the requirements of relevant agencies. Operator should take
adequate mitigatory measures to minimize possible pollution of air, water and soil.
Adequate training should be given to workers involved in solid waste management operations and operator
should endeavour to involve trained workers as far as possible.
Any person wishing to operate a solid waste disposal (including transfer station, materials recovery,
incineration, composting etc) shall provide to the CEA the following information and any further information
as may be requested by the CEA for approval procedure.
A topographic map showing the location and boundaries of the proposed site and land use within one
Kilometre radius of the proposed site
A clear lay out plan with appropriate scale showing full details of the proposed locations for different
activities.
The capacity of the facility, all machineries and equipments to be used in the facility, operating hours, number
of working days, number of workers for each activity.
The details of the operation flow diagram for the proposed facility, origin, composition, and expected weight
or volume of solid waste to be accepted as well as the projected waste quantity expected in future years.
Legal requirement
If any of the solid waste management facilities mentioned hereinafter meets the requirement of the Gazette
(Extra Ordinary) No. 772/22 of 24th June 1993 and the subsequent amendments, then it shall follow the
Environmental Impact Assessment Process in order to obtain the environmental clearance.
The noise levels shall be maintained at the boundaries of the site as stipulated in the Gazette (Extra Ordinary)
No. 924/12 dated 23rd May 1996.
Effluents or leachate quality should be monitored and treated to conform to the standards /tolerance limits as
mentioned in the CEA guidelines.
89
Prior approval for the building plan needs to be obtained from the relevant Local Authority
An environmental recommendation prior to initiate any activity and a permit for construction and operation
of the facility shall be obtained from the CEA
Operational requirement
Authorized officer shall be on duty during operating and non-operating hours at the waste reception point to
control unauthorized access. (This is not applicable in the case of Waste Collection System)
Any infectious waste or hazardous waste should not be accepted into the facility. A proper screening procedure
or mechanism shall be established for preventing the solid waste from the infectious waste or hazardous waste
that may be mixed.
Litter, insects, odour and vectors shall be controlled to prevent sanitary nuisance and unsightly appearance.
Adequate fire protection shall be installed and available at all times.
A contingency plan to cover the machine / vehicle breakdown or any operation interruptions and delay.
Attention should be given to collect and transport obnoxious waste separately as much as possible
Waste collection
Introduction
Waste collection is the act of picking up wastes at homes, businesses, institutions, commercial and industrial
plants and other locations; loading them into a collection vehicle and hauling them to a facility for further
processing or transfer to a disposal site. Collection of wastes is the one of the basic elements of any waste
management system.
Collection of unseparated (commingled) and separated solid waste in an urban area is difficult and complex
because the generation of wastes takes place in every house, every apartment building and commercial and
individual facility as well as in the streets, parks, and even vacant areas. Therefore in any waste collection
operation it is important to look into; types of waste collection services/systems, type of equipment to be used
and associated labour requirements, collection routes etc.
Any person wishing to operate a waste collection system shall have the following information given under
general requirements below.
General Requirements
The waste collection areas and transport routes, the number and type of the collection vehicles to be used,
frequency of waste collection and the schedule for collection and transport.
Design Requirements
Specifications of all machineries, equipment and vehicles to be used in the facility.
Type, numbers, capacities shall be detailed.
Collection vehicles shall be fully covered and leachate collection box shall also be prepared to prevent littering
and leachate spill during transportation.
90
Operational Requirements
Heavily travelled roads should not be served or used during rush hours.
Any infectious waste or hazardous waste should not be accepted into the normal waste collection vehicles.
Daily records of the quantity of solid waste collected, the origin of waste, the quantity of solid waste
transferred to disposal site, shall be maintained.
The Proposed Colour Codes for Garbage Bags
Green Colour - Organic Waste
Blue Colour - Paper
Red Colour - Glass Bottles
Brown Colour - Metals / Coconut shells
Orange Colour - Plastic & Polythene
91
Waste Management Best Practices
Wa
ste
Ty
pe
Wa
ste
Ma
teria
ls
Tra
de
Co
ntr
acto
r
Best Practice
Wa
ste
Min
imiz
ati
on
s
On
sit
e
Re-
use
/Rec
ycl
ing
/Rec
o
ver
y
Off
-sit
e
Re-
use
/Rec
ycl
ing
/Rec
o
ver
y
Dis
po
sal
Iner
t
Concrete Construction Retention of concrete
onsite where possible.
Only order what is required.
Use as secondary
aggregate on site.
Segregate for re-
processing and
reuse as recycled secondary
aggregate.
Landfill and
cover
Rubble
(hardcore)
Construction Only order what is
required.
Opportunities to
reuse cut material
as fill in proposed
noise bund
Segregate for
reprocessing and
reuse as recycled
secondary aggregate.
Landfill and
cover
Non
-haza
rdou
s
Soil/Green
waste/vegetation
Construction Opportunities to
reuse cut material
as fill in proposed noise bund
Landfill and
cover
Mixed waste Construction Use of standard sizes.
Arrange take back of
unused materials with the
supplier.
N/A Segregate for
reprocessing and
reuse as recycled
secondary
aggregate.
Landfill/
Incineration
Metal Construction Made to measure, correct
ordering just in time
delivery store correctly.
Arrange take back of unused materials with the
supplier.
Segregate for
reprocessing and
reuse as recycled
secondary aggregate.
Landfill
Timber Construction Avoid over ordering.
Provision of suitable
storage to avoid damage.
Arrange take back of unused materials with the
supplier.
Re-use/Recycle if
feasible
Landfill/
Incineration
Plasterboard Construction Avoid over ordering.
Provision of suitable
storage to avoid damage.
Arrange take back of
unused materials with the
supplier.
Cannot reuse Recycle if feasible Landfill
Packaging Construction Ask suppliers to send
products with minimal
packaging/ reusable
containers, buy bulk not
individually wrapped
products. Return pallet to
supplier or use plastic
pallets.
N/A Segregate for
reprocessing and
reuse as recycled
secondary
aggregate.
Landfill/
Incineration
Cabal & wiring Construction Avoid over ordering.
Arrange take back of
unused materials with the
supplier.
Reuse onsite if
appropriate
Segregate and
recycle to reclaim
plastics and metal.
Landfill
General office
waste
Site
Management
Print double sided and
send documents
electronically, reusable
crockery and cutlery.
Reuse paper,
cartridges, plastic
cups, tins and
cardboards.
Segregate and
recycle white
papers. Send for
composting (food
waste only)
Landfill
Glass Construction Avoid over ordering,
appropriate storage to
avoid accidents. Arrange
take back of unused
N/A Segregate and
send for recycling
Landfill and
cover
92
materials with the supplier.
WEEE Construction Arrange take back of
unused materials with the
supplier.
Reuse elsewhere
onsite
Send to dedicated
recycling facility
for recovery and recycling.
Landfill
Haza
rdou
s
Asbestos Construction N/A/ N/A N/A Landfill
Contaminated
Land
Construction Avoid excavation where
unnecessary
Consider onsite
treatment methods
Treatment
contaminated land hubs.
Landfill
Paintings, line
markers, mastic
Construction Use solvent free paits that
are not disposed off as
hazardous waste,
maximum use of
mechanical fitting rather than adhesives. Arrange
take back of unused
materials with the
supplier.
Use lockable
COSHH container
for storage
N/A Landfill
WEEE Construction N/A Re-use elsewhere
on-site
Send to dedicated
recycling facility for recovery and
recycling.
Landfill
93
Annex 7: Environmental Pollution Control Standards
Emission Standards
Regulations
The National Environmental (Ambient Air Quality) Regulations, 1994, published in Gazette Extraordinary,
No. 850/4 of December, 1994 are hereby amended by the substitution for the Schedule to that regulation of
the following :-
Pollutant Time Average Emission
Standards (µg/ m3)
Emission
Standards (ppm)
SO2
1 hr 200 0.08
8 hrs 120 0.05
24 hrs 80 0.03
NO2
1 hr 250 0.13
8 hrs 150 0.08
24 hrs 100 0.05
CO
1 hr 30000 26.00
8 hrs 10000 9.00
anytime 58000 50.0
O3 1 hr 200 0.10
PM10 24 hrs 100 -
Annual 50 -
PM2.5 24 hrs 50 -
Annual 25 -
* Minimum number of observations required to determine the average over the specified period —
03 hour average - 03 consecutive hourly average
08 hour average - 08 hourly average
24 hour average - 18 hourly average
Yearly average - 09 monthly average with at least 02 monthly average each quarter.
+ By using Chemicals or Automatic Analyzers.
94
95
Noise Level Regulations
Area LAeq' T - Day Time LAeq' T- Night Time
Schedule I
Low Noise 55 45
Medium Noise 63 50
High Noise 70 60
Silent Zone 50 45
Schedule III
For Construction Activities 75 50
Schedule IV
Rural Residential 55 45
Urban Residential 60 50
Noise Sensitive 50 45
Mix residential 63 55
Commercial 65 55
Industrial 70 60
ILO Standards of Noise Levels
Noise level
(dB(A))
Maximum exposure (times
per day)
80 16 hours
85 8 hours
90 4 hours
95 2 hours
100 1 hour
105 1/2 hours
110 1/4 hours
115 1/8 hours
“day time” from 06.00 hours to 18.00 hrs,:
“night time” means from 18.00 to 06.00 hours
“Noise sensitive area” includes any area in which a courthouse, hospital, public library, school, zoo sacred
area and areas set a part for recreation or environmental purposes are depicted in a noise zone map;
96
Interim Vibration Standards
97
98
Wastewater Discharge Standards
99
100
Annex 8: Factory Ordinance and ILO Guidelines
Factory ordinance can be downloaded from this link:
http://www.employers.lk/factories-ordinance-i
SCDP - Environmental Management and Assessment Framework Guidelines
Health and Safety Guidelines
Health and safety of workers and the public should be designed into constructions, before and during and after
the building phase. It is cheaper and easier to control risks in construction to workers as well as the public
before work starts on site by proper planning, training, site induction, worker consultation and incorporating
strict safety procedures in construction plans. The proposed project interventions will mostly involve small to
medium scale construction sites. As such, extreme dangers posed by working in environments such as great
heights, deep water and involving dangerous chemicals and radioactive material will not be present. Potential
dangers associated with SCDP sites will include falling from moderate heights, vehicle/pedestrian accidents,
falling into trenches, being buried in tunnels/excavations, breathing dust and other air pollutants, back aches
caused by handling heavy material, suffering hearing loss from noise etc and can be mitigated with following
safety guidelines.
EA for each site should mandatorily include a risk assessment as to what are the hazards involved in the work
site, who might be harmed and how seriously, how likely this harm might happen and what actions are required
to eliminate or reduce the risk and incorporate such measures in the EMP and clearly set out in the tender
documents. All sub-projects must observe health and safety regulations, hence during implementation it is
important to check if these control measures are put in place and are meeting the legal requirement.
Training
• Ensure constructors carry out suitable training programs on occupational health and safety for workers prior
to commencement of construction.
• Ensure only experienced and well trained workers are used for the handling of machinery, equipment and
material processing plants
• Ensure all persons, including managers, are trained and able to carry out their work without risk to the safety
or health of themselves, other workers or the public
Personal Protective Equipment
• Ensure appropriate safety equipment, tools and protective clothing are provided to workers and that safe
working methods are applied. A safety inspection checklist should be prepared taking into consideration what
the workers are supposed to be wearing and monitored.
Any person who works or operates in an area where there is a risk of flying objects, such as splinters, should
wear safety goggles at all time. These should be securely fitted to the face. Welders should protect the entire
face from hot sparks and bright rays by using a welding mask.
• Any person exposed to high levels of dust or hazardous gases (when working in tunnels) should wear
respiratory protection in the form of disposal masks or respiratory masks which fit more snugly around the
nose and mouth.
• Any person working in an area where there is the risk of being struck on the head by a falling or flying object
should wear a hard hat at all times. These should be well maintained in order to be fully effective, and any
helmets or hard hats that are damaged or cracked should immediately be replaced.
• All workers will be required to wear shoes or strong boots to prevent sharp objects from penetrating or
crushing the foot. Those working in muddy conditions and in canals with polluted water should avoid
hand/foot contact with water and should never wear slippers.
• Road workers should wear reflective vests to avoid being hit by moving vehicular traffic.
101
Site Delineation and Warning Signs
• Ensure delineation devices such as cones, lights, tubular markers, orange and white strips and barricades are
erected to inform oncoming vehicular traffic and pedestrians in the area about work zones.
• Ensure all digging and installing work items that are not accomplished are isolated and warned of by
signposts and flash lamps in nighttime.
• Ensure dangerous warning signs are raised to inform public of particular dangers and to keep the public away
from such hazards.
• Ensure rehabilitation of trenches progressively once work is completed.
• The safety inspection checklist must look to see that the delineation devices are used, whether they are
appropriately positioned, if they are easily identifiable and whether they are reflective.
Equipment safety
• Work zone workers use tools, equipment and machinery that could be dangerous if used incorrectly or if the
equipment malfunctions Inspections must be carried out to test the equipment before it is used, so that worker
safety can be secured. Inspections should look for evidence of wear and tear, frays, missing parts and
mechanical or electrical problems.
Traffic management
• Ensure traffic control plans and procedures are in place when work zone is set up and how to handle full or
partial road closure, blocked intersections, sidewalk closure etc
• Ensure installation of transport signs and lighting systems in conspicuous places to assure transport safety.
Transport signs should be installed at places where accidents may be easily happened (populated centers,
schools, hospitals, commercial areas etc)
Material management
Ensure easily flammable materials are not be stored in construction site and that they are transported out of
project site
Emergency Procedures
• Ensure an emergency aid service is in place in the work zone.
• Ensure all site staff is properly briefed as to what to do in the event of an emergency, such as who to notify
and where to assemble for a head count. This information must be conveyed to employees by the site manager
on the first occasion a worker visits the site.
Construction camps
• Ensure installation of adequate construction camps and sanitation facilities for construction workers to
control of transmission of infectious diseases.
Information management
• Develop and establish contractor’s own procedure for receiving, documenting and addressing complaints
that is easily accessible, culturally appropriate and understandable to affected communities.
• Provide advance notice to local communities by way of information boards about the schedule of
construction activities.
Worker consultation
• Consulting the workforce on health and safety measures is not only a legal requirement, it is an effective
way to ensure that workers are committed to health and safety procedures and improvements. Employees
should be consulted on health and safety measures and before the introduction of new technology or products.
ILO Guidelines
102
The occupational safety and health management system in the organization
Occupational safety and health, including compliance with the OSH requirements
pursuant to national laws and regulations, are the responsibility and duty of the employer. The
employer should show strong leadership and commitment to OHS activities in the organization, and
make appropriate arrangements for the establishment of an OHS management system. The system
should contain the main elements of policy, organizing, planning and implementation, evaluation
and action for improvement, as shown in figure 2.
Figure 2. Main elements of the OHS managements system
3
103
Policy
3.1. Occupational safety and health policy
3.1.1. The employer, in consultation with workers and their representatives, should set cost in writing an OHS
policy, which should be:
(a) Specific to the organization and appropriate to its size and nature of its activities;
(b) Concise, clearly written, dated and made effective by the signature or endorsement of the employer or the
most senior accountable person in the organization;
(c) Communicated and readily accessible to all persons at their place of work:
(d) Reviewed for continuing suitability: and
(e) Made available to relevant external interested parties, as appropriate.
3.1.2. The OSH policy should include, as a minimum, the following key principles and objectives to which
the organization is committed;
(a) Protecting the safety and health of all members of the organization by preventing work – related injuries,
ill health, diseases and incident;
(b) Complying with relevant OHS national laws and regulation, voluntary programs, collective agreements
on OHS and other requirements to which the organization subscribes;
(c) Ensuring that workers and their representative are consulted and encouraged to participate actively in all
elements of the OSH management system; and
(d) Continually improving the performance of the OSH management system.
3.1.3. The OSH management system should be compatible with or integrated in other management systems
in the organization.
3.2. Worker participation
3.2.1. Worker participation is an essential elements of the OSH management system in the organization
3.2.2. The employer should ensure that workers and their safety and health representatives are consulted,
informed and trained on all aspects of OSH, including emergency arrangements, associated with their work.
3.2.3. The employer should make arrangements for workers and their safety and health representatives
to have the time and resources to participate actively in the processes of organizing, planning and
implementation, evaluation and action for improvement of the OSH management system.
3.2.4. The employer should ensure, as appropriate, the establishment and efficient functioning of a safety
and health committee and the recognition of workers safety and health representatives, in accordance with
national laws and practice.
Organizing
3.3. Responsibility and accountability
104
3.3.1. The employer should have overall responsibility for the protection of workers’ safety and health, and
provide leadership for OSH activities in the organization.
3.3.2. The employer and senior management should allocate responsibility, accountability and authority for
the development, implementation and performance of the OSH management system and the achievement of
the relevant OSH objectives. Structures and processes should be established which;
(a) Ensure that OSH is a time – management responsibility which is known and accepted at all levels;
(b) Define and communicate to the members of the organization the responsibility, accountability and
authority of person who identify, evaluate or control OSH hazards and risks;
(c) Provide effective supervision, as necessary, to ensure the protection of workers’ safety and health;
(d) Promote cooperation and communication among members of the organization, including workers and
their representatives, to implement the elements of the organization’s OSH management system;
(e) Fulfil the principles of OSH management system contained in relevant national guidelines, tailored
guidelines or voluntary programs, as appropriate, to which the organization subscribes;
(f) Establish and implement a clear OSH policy and measurable objectives;
(g) Establish effective arrangements to identify and eliminate or control work – related hazards and risks, and
promote health at work;
(h) Establish prevention and health promotion programmers;
(i) Ensure effective arrangements for the full participation of workers are their representatives in the
fulfilment of the OSH policy;
(j) Provide effective arrangements for the full participation of workers and their representatives in safety and
health committees, where they exist.
3.3.3. A person or persons at the senior management level should be appointed, where appropriate, with
responsibility, accountability and authority for:
(a) The development, implementation, periodic review and evaluation of the OSH management system;
(b) Periodic reporting to the senior management on the performance of the OSH management system; and
(c) Promoting the participation of all members of organization.
3.4. Competence and training
3.4.1. The necessary OSH competence requirements should be defined by the employer, and arrangements
established and maintained to ensure that all person are competent to carry out the safety and health aspects
of their duties and responsibilities.
3.4.2. The employer should have, or should have access to, sufficient OSH competence to identify and
eliminate or control work- related hazards and risks, and to implement the OSH management system.
3.4.3. Under the arrangement referred to in paragraph 3.4.1.training programmes should:
(a) Cover all members of the organization, as appropriate;
(b) Be conducted by competent persons;
(c) Provide effective and timely initial and refresher training at appropriate intervals;
(d) Include participants’ evaluation of their comprehension and retention of the training;
(e) Be reviewed periodically. The review should include the safety and health committee, where it exists, and
the training programmes, modified as necessary to ensure their relevance and effectiveness; and
(f) Be documented, as appropriate and according to the size and nature of activity of the organization.
3.4.4. Training should be provided to all participants at no cost and should take place during working hours,
if possible.
3.5. Occupational safety and health management system documentation
3.5.1. According to the size and nature of activity of the organization, OSH management system
documentation should be established and maintained, and may cover;
(a) The OSH policy and objectives of the organization;
105
(b) The allocated key OSH management roles and responsibilities for the implementation of the OSH
management system;
(c) The significant OSH hazards/risks arising from the organization’s activities, and the arrangements for
their prevention and control; and
(d) Arrangements, procedures, instructions or other internal documents used within the framework of the
OSH management system.
3.5.2. The OSH management system documentation should be:
(a) Clearly written and presented in a way that is understood by those who have to use it; and
(b) Periodically reviewed, revised as necessary, communicated and readily accessible to all appropriate or
affected members of the organization.
3.5.3. OSH records should be established, managed and maintained locally and according to the needs of the
organization. They should be identifiable and traceable, and their retention times should be specified.
3.5.4. Workers should have the right to access records relevant to their working environment and health, while
respecting the need for confidentiality.
3.5.5. OSH records may include:
(a) Records arising from the implementation of the OSH management system;
(b) Records of work- related injuries, ill health, diseases and incidents;
(c) Records arising from national laws or regulations dealing with OSH;
(d) Records of workers’ exposures, surveillance of the working environment and workers’ health; and
(e) The results of both active and reactive monitoring.
3.6. Communication
3.6.1. Arrangement and procedures should be established and maintained for:
(a) Receiving, documenting and responding appropriately to internal and external communications related to
OSH;
(b) Ensuring the internal communication of OSH information between relevant levels and functions of the
organization; and
(c) Ensuring that the concerns, ideas and inputs of workers and their representatives on OSH matters are
received, considered and responded to.
Planning and implementation
3.7. Initial review
3.7.1. The organization’s existing OSH management system and relevant arrangements should be evaluated
by an initial review, as appropriate. In the case where no OSH management system exists, or if the
organization is newly established, the initial review should serve as a basis for establishing an OSH
management system.
3.7.2. The initial review should be carried out by competent persons, in consultation with workers and / or
their representatives, as appropriate. It should:
(a) Identify and current applicable national laws and regulations, national guidelines, tailored guidelines,
voluntary programmes and other requirements to which the organization subscribes;
106
(b) Identify, anticipate and assess hazards and risks to safety and health arising from the existing or proposed
work environment and work organization; and
(c) Determine whether planned or existing controls are adequate to eliminate hazards or control risks; and
(d) Analyze the data provided from workers’ health surveillance.
3.7.3. The result of the initial review should:
(a) Be documented;
(b) Become the basis for marking decisions regarding the implementation of the OSH management system;
and
(c) Providing a baseline from which continual improvement of the organization’s OSH management system
can be measured.
3.8. System planning, development and implementation
3.8.1. The purpose of planning should be to create on OSH management system that supports:
(a) As the minimum, compliance with national laws and regulations;
(b) The elements of the organization’s OSH management system; and
(c) Continual improvement in OSH performance.
3.8.2. Arrangement should be made for adequate and appropriate OSH planning, based on the results of the
initial review, subsequent reviews or other available data. These planning arrangements should contribute to
the protection of safety and health at work, and should include;
(a) A clear definition, priority setting and quantification, where appropriate, of the organization’s OSH
objectives;
(b) The preparation of a plan for achieving each objective, with defined responsibility and clear performance
criteria indicating what is to be done by whom and when;
(c) The selection of measurement criteria for confirming that the objectives are achieved; and
(d) The provision of adequate resources, including Harran and financial resources and technical support, as
appropriate.
3.8.3. The OSH planning arrangements of the organization should cover the development and implementation
of all the OHS management system elements, as described in Chapter 3 of these guidelines and illustrated in
figure 2.
3.9. Occupational safety and health objectives
3.9.1. Consistent with the OSH policy and based on the initial or subsequent reviews, measurable OSH
objectives should be established, which are:
(a) Specific to the organization, and appropriate to and according to its size and nature of activity;
(b) Consistent with the relevant and applicable national laws and regulations, and the technical and business
obligations of the organization, with regard to OSH;
(c) Focused towards continually improving workers’ OSH Protection to achieve the best OSH performance;
(d) Realistic and achievable;
(e) Documented, and communicated to all relevant functions and levels of the organization; and
(f) Periodically evaluated and if necessary updated.
3.10 Hazard prevention
3.10.1. Prevention and control measures
3.10.1.1. Hazards and risks to workers’ safety and health should be identified and assessed on an ongoing
basis. Preventive and protective measures should be implemented in the following order of priority;
(a) Eliminate the hazard/risk;
107
(b) Control the hazard/risk at source, through the use of engineering controls or organizational measures;
(c) Minimize the hazard/risk by the design of safe work systems, which include administrative control
measures; and
(d) Where residual hazard/risk cannot be controlled by collective measures, the employer should provide for
appropriate personal protective equipment, including clothing, at no cost, and should implement measures
to ensure its use and maintenance.
3.10.1.2. Hazard prevention and control procedures of arrangements should be established and should:
(a) Be adapted to the hazards and risks encountered by the organization ;
(b) Be reviewed and modified if necessary on a regular basis;
(c) Comply with national laws and regulations, and reflect good practice; and
(d) Consider the current state of knowledge, including information or reports from organizations, such as
labour inspectorates, occupational safety and health services, and other services as appropriate.
3.10.2. Management of change
3.10.2. The impact on OSH of intimal changes (such as those in staffing or due to new processes, working
procedures, organizational structures or acquisitions) and of external changes (for example, as a result of
amendments of national laws and regulations, organizational mergers, and developments in OSH knowledge
and technology) should be evaluated and appropriate preventive steps taken prior to the introduction of
changes.
3.10.2.2. A workplace hazard identification and risk assessment should be carried out before any modification
or introduction of new work methods, materials, processes or machinery. Such assessment should be done in
consultation with and involving workers and their representatives, and the safety and health committee, where
appropriate.
3.10.2.3. The implementation of a “decision to change” should ensure that all affected members of the
organization are properly informed and trained.
3.10.3. Emergency prevention, preparedness and response
3.10.3.1. Emergency prevention, preparedness and response arrangements should be established and
maintained. These arrangements should identify the potential for accidents and emergency situations, and
address the prevention of Osh risks associated with them. The arrangements should be made according to the
size and nature of activity of the organization. They should;
(a) Ensure that the necessary information, internal communication and coordination are provided to protect
all people in the event of an emergency at the worksite;
(b) Provide information to, and communication with the relevant competent authorities, and the neighborhood
and emergency response services;
(c) Address first – aid and medical assistance, firefighting and evacuation of all people at the worksite; and
(d) Provide relevant information and training to all members of the organization, at all levels, including
regular exercises in emergency prevention, preparedness and responses procedures.
3.10.3.2. Emergency prevention, preparedness and response arrangements should be established in
cooperation with external emergency services and other bodies where applicable.
3.10.4. Procurement
3.10.4.1. Procedures should be established and maintained to ensure that:
(a) Compliance with safety and health requirements for the organization is identified. evaluation and
incorporated into purchasing and leasing specifications;
(b) National laws and regulations and the organizations own OSH requirements are identified prior to the
procurement of goods and services; and
(c) Arrangement are made to achieve conformance to the requirements prior to their use.
108
3.10.5. Contracting
3.10.5.1. Arrangements should be established and maintained for ensuring that the organization’s safety and
health requirements, or at least the equivalent, are applied to contractors and their workers.
3.10.5.2. Arrangements for contractors working on site should:
(a) Include OSH criteria in procedures for evaluating and selecting contractors;
(b) Establish effective ongoing communication and coordination between appropriate levels of the
organization and the contractor prior to commencing work. This should include provisions for
communicating hazards and the measures to prevent and control them;
(c) Include arrangement for reporting of work-related injuries, ill health, diseases and incidents among the
contractors’ workers while performing work for the organization;
(d) Provide relevant workplace safety and health hazard awareness and training to contractors or their workers
prior to commencing work and as work progresses, as necessary;
(e) Regularly monitor OSH performance of contractor activities on site; and
(f) Ensure that on- site OSH performance of contractor activities on site; and
(g) Ensure that on-site OSH procedure and arrangements are followed by the contractor(s).
109
Evaluation
3.11. Performance monitoring and measurement
3.11.1. Procedures to monitor, measure and record OSH performance on a regular basis should be developed,
established and periodically reviewed. Responsibility, accountability and authority for monitoring at different
levels in the management structure should be allocated.
3.11.2. The selection of performance, indicators should be according to the size and nature of activity of the
organization and the OSH objectives.
3.11.3. Both qualitative and quantitative measures appropriate to the needs of the organization should be
considered. These should;
(a) Be based on the organization’s identified hazards and risks, the commitments in the OSH policy and the
OSH objectives; and
(b) Support the organization’s evaluation process, including the management review.
3.11.4. Performance monitoring and measurement should:
(a) Be used as a means of determining the extent t which OSH policy and objectives are being implemented
and risks are controlled;
(b) Include both active and reactive monitoring, and not be based only upon work-related injury, ill health,
disease and incident statistics; and
(c) be recorded.
3.11.5. Monitoring should provide;
(a) feedback on Osh performance;
(b) information to determine whether the day-to-day arrangements for hazard and risk identification,
prevention and control are in place and operating effectively; and
(c) the basis for decisions about improvement in hazard identification and risk control, and the OSH
management system.
3.11.6. Active monitoring should contain the elements necessary to have a proactive system and should
include;
(a) monitoring of the achievement of specific plans, established performance criteria and objectives;
(b) the systematic inspection of work systems, premises, plant and equipment;
(c) surveillance of working environment, including work organization;
(d) surveillance of workers’ health, where appropriate, through suitable medical monitoring or follow-up of
workers for early detection of signs and symptoms of harm to health in order to determine the effectiveness
of prevention and control measures; and
(e) compliance with applicable national laws and regulations, collective agreements and other commitments
on OSH to which the organization subscribes.
3.11.7. Reactive monitoring should include the identification, reporting and investigation of;
(a) work-related injuries, ill health (including monitoring of aggregate sickness absence records), diseases
and incidents;
(b) other losses, such as damage to property;
(c) deficient safety and health performance, and OSH management system failures; and
(d) Workers’ rehabilitation and health-restoration programmes.
110
3.12. Investigation of work-related injuries, ill health, diseases and incidents, and their impact
on safety and health performance
3.12.1. The investigation of the origin and underlying causes of work-related injuries, ill health, diseases and
incidents should identify any failures in the OSH management system and should be documented.
3.12.2. Such investigations should be carried out by competent persons, with the appropriate participation of
workers and their representatives.
3.12.3. The results of such investigations, should be communicated to the safety and health committee, where
it exists, and the committee should make appropriate recommendations.
3.12.4. The results of investigations, in addition to any recommendations from the safety and health
committee, should be communicated to appropriate persons for corrective action, included in the management
review and considered for continual improvement activities.
3.12.5. The corrective action resulting from such investigations should be implemented in order to avoid
repetition of work-related injuries, ill health, diseases and incidents.
3.12.6. Reports produced by external investigative agencies, such as inspectorates and social insurance
institutions, should be acted upon in the same manner as internal investigations, taking into account issues of
confidentiality.
3.13 Audit
3.13.1. Arrangements to conduct periodic audits are to be established in order to determine whether the OSH
management system and its elements are in place, adequate, and effective in protecting the safety and health
of workers and preventing incidents.
3.13.2. An audit policy and programme should be developed, which including designation of auditor
competency, the audit scope, the frequency of audits, audit mythology and reporting.
3.13.3. The audit includes an evaluation of the organization’s OSH management system elements or a subset
of these, as appropriate. The audit should cover.
(a) OSH policy;
(b) Worker participation;
(c) Responsibility and accountability;
(d) Competence and training;
(e) OSH management system documentation;
(f) Communication;
(g) System planning, development and implementation;
(h) Prevention and control measures;
(i) Management of change;
(j) Emergency prevention,
(k) Procurement;
(l) Contracting;
(m) Performance monitoring and measurement;
(n) Investigation of work-related injuries, ill health diseases and incidents, and their impact on safety and
health performance;
(o) Audit;
(p) Management review;
(q) Preventive and corrective action;
(r) Continual improvement; and
(s) any other audit criteria or elements that may be appropriate.
3.13.4. The audit conclusion should determine whether the implemented OSH management system elements
or a subset of these;
(a) are effective in meeting the organization’s OSH policy and objectives;
(b) are effective in promoting full worker participation;
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(c) respond to the results of OSH performance evaluation and previous audits;
(d) enable the organization to achieve compliance with relevant national laws and regulations; and
(e) fulfil the goals of continual improvement and best OSH practice.
3.13.5. Audits should be conducted by competent persons internal or external to the organization who are
independent of the activity being audited.
3.13.6. The audit results and audit conclusions should be communicated to those responsible for corrective
action.
3.13.7. Consultation on selection of the auditor and all stages of the workplace audit, including analysis of
results, are subject to worker participation, as appropriate.
3.14. Management review
3.14.1. Management reviews should:
(a) evaluate the overall strategy of the OSH management system to determine whether it meets planned
performance objectives;
(b) evaluate the OSH management system’s ability to meet the overall needs of the organization and its
stakeholders, including its workers and the regulatory authorities;
(c) evaluate the need for changes to the OSH management system, including OSH policy and objectives;
(d) identify what action is necessary to remedy any deficiencies in a timely manner, including adaptations of
other aspects of the organization’s management structure and performance measurement;
(e) provide the feedback direction, including the determination of priorities, for meaningful planning and
continual improvement;
(f) evaluate progress towards the organization’s OSH objectives and corrective action activities; and
(g) evaluate the effectiveness of follow-up actions from earlier management reviews.
3.14.2. The frequency and scope of periodic reviews of the OSH management system by the
organization’s needs and conditions.
3.14.3. The management review should consider;
(a) the results of work-relate injuries, ill health, diseases and incident investigations; performance monitoring
and measurement; and audit activities; and
(b) additional internal and external inputs as well as changes, including organizational changes, that could
affect the OSH management system.
3.14.4. The findings of the management review should be recorded and formally communicated to;
(a) the persons responsible for the relevant element(s) of the OSH management system so that they many take
appropriate action; and
(b) the safety and health committee, workers and their representatives.
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Action for improvement
3.15. Preventive and corrective action
3.15.1. Arrangements should be established and maintained for preventive and corrective action resulting from
OSH management system performance monitoring and measurement, OSH management system audits and
management reviews. These arrangements should include;
(a) identifying and analyzing the root causes of any non-conformities with relevant OSH regulations and/or
OSH management systems arrangements; and
(b) initiating, planning, implementing, checking the effectiveness of and documenting corrective and
preventive action, including changes to the OSH management system itself.
3.15.2. When the evaluation of the OSH management system or other sources show that preventive and
protective measures for hazards and risks are inadequate or likely to become inadequate, the measures
should be addressed according to the recognized hierarchy of prevention and control measures, and
completed and documented, as appropriate and in a timely manner.
3.16. Continual improvement
3.16.1. Arrangements should be established and maintained for the continual improvement of the relevant
elements of the OSH management system and the system as a whole. These arrangements should take into
account;
(a) the OSH objectives of the organization;
(b) the results of hazard and risk identifications and assessments;
(c) the results of performance monitoring and measurements;
(d) the investigation of work-related injuries, diseases, ill health and incidents, and the results and
recommendations of audits;
(e) the outcomes of the management review;
(f) the recommendations for improvement from all members of the organization, including the safety and
health committee, voluntary programmes and collective agreements;
(g) changes in national laws and regulations, voluntary programmes and collective agreements;
(h) new relevant information; and
(i) the results of health protection and promotion programmes.
3.16.2. The safety and health processes and performance of the organization should be compared with others
in order to improve health and safety performance.
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Annexure 9: Chance finds procedures
Contracts for civil works involving earth moving and excavation activities, especially in known archaeological
and heritage areas, should normally incorporate procedures for dealing with situations in which buried PCRs
are unexpectedly exposed.
Recognition of unknown PCRs – This is the most difficult aspect to cover, especially if the contractor is not
full-time accompanied by a specialist. For SCDP contracts, an initial consultation with the Department of
Archaeology should be held before work commencement to identify the likelihood of such material being
uncovered, especially where trenching work is expected for pipe laying etc.
Upon discovery of such material during execution of work, the contractor should carry out the following; • Immediately stop construction activities.
• With the approval of the resident engineer delineate the discovered site area.
• Secure the site to prevent any damage or loss of removable objects. In case of removable antiquities
or sensitive remains, a night guard should be present until the responsible authority takes over.
• Through the Resident Engineer, notify the responsible authorities, the Department of Archaeology
and local authorities within 24 hours.
• Submit a brief chance find report, within a specified time period, with date and time of discovery,
location of discovery, description of finding, estimated weight and dimension of PCR and temporary
protection implemented.
• Responsible authorities would be in charge of protecting and preserving the site before deciding on
the proper procedures to be carried out.
• An evaluation of the finding will be performed by the Department of Archaeology who may decide
to either remove the PCR deemed to be of significance, further excavate within a specified distance
of the discovery point and conserve on-site, and/or extend/reduce the areas demarcated by the
contractor etc. This should ideally take place within about 7 days. • Construction work could resume only when permission is given from the Department of Archaeology
after the decision concerning the safeguard of the heritage is fully executed.
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Annexure 10: Terms of Reference for Recruitment of Environmental and Social Safeguard
Officer
The contractor through an appointment of dedicated / qualified environmental and social safeguard officer
shall be responsible in implementation of Environmental Management Plan (EMP), Social Impact Mitigation
Plan (SIMP) of Social Screening Report (SSR) requirement by
a) Maintaining up-to-date records on actions taken by the Contractor with regards to implementation of
EMP and SSR recommendations.
b) Timely (weekly) submission of progress reports (Environmental and Social), information and data to
the Project Management Unit (PMU) / Deputy Project Director (Technical) of SCDP through
Supervision consultant (SC).
c) Participating in the meetings conveyed by the Engineer and
d) Any other assistance requested by the Engineer.
The Environmental and Social Safeguard Officer will be the primary focal point of contact for the assistance
with all environmental and social issues during the pre-construction and construction phases. He/ She shall be
responsible for ensuring the implementation of EMP, SIMP and SSR recommendations. . The appointed
officer should be available on the site fulltime basis during the project period. In addition, Environmental and
Social Safeguard Officer should prepare an Environmental Management Action Plan and Social Impact
Mitigation Action Plan in line with EMP and SIMP of SSR and submit to the Engineer along with the
construction method statement.
The Environmental and Social Safeguard Officer will promptly investigate and review environmental and
social related complaints and implement the appropriate corrective actions to arrest or mitigate the cause of
the complaints as specified in the Environmental Management and Assessment Framework (EMAF) and
Resettlement Policy Framework (RPF) of SCDP. A register of all complaints is to be passed to the Engineer
within 24 hrs they are received, with the action taken by the Safeguard Officer on complains thereof. In
addition, Environmental & Social Safeguard Officer required to perform following tasks as well;
1. Participation for the periodic Grievance Redress Committee Meetings at Village Level, Local and
PMU Level
2. Coordinate and liaise with Local PMU at Galle related environmental and social activities
3. Support and coordinate with PMU Environmental and Social Safeguard team in carrying out the
monitoring assessments such as baseline surveys, progress review, mid-term review, etc.
4. Take actions to mainstream project activities during the period
5. Identify the potential environment and social safeguards issues in accordance provided
EMP/SIMP/SSR
Qualifications required
Environmental & Social Safeguard Officer preferably possessing a Bachelor Degree with minimum of 3 years
experiences in the relevant field or minimum of eight (8) years of experiences in the similar capacity.
Preferably, experience in specific project related works is required. It is essential to have both Sinhala &
English language ability (speaking) and Computer Knowledge of MS Office.
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Annexure 11: Locations for the Silt Traps and Turbidity Curtains:
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Annex 12: Details of three may be removed during the construction
No. Generic Name Scientific Name Cross Drain Address
1 Kingcoconut Cocos nucifera Hirimbura
28/6,Hirimbura Cross
Road,Gamagewatta,Galle
2 Coconut Cocos nucifera Hirimbura
28/6,Hirimbura Cross
Road,Gamagewatta,Galle
3 Coconut Cocos nucifera Hirimbura 36/28-D,Hirimbura Cross Road,Galle
4 Coconut Cocos nucifera Hirimbura 36/28-D,Hirimbura Cross Road,Galle
5 Coconut Cocos nucifera Hirimbura 36/28-D,Hirimbura Cross Road,Galle
6 Coconut Cocos nucifera Hirimbura 36/28-D,Hirimbura Cross Road,Galle
7 Goraka Garcinia gummi-gutta Hirimbura 36/28-D,Hirimbura Cross Road,Galle
8 Coconut Cocos nucifera Hirimbura 33/9,Anagarika Dharmapala Mawatha,Galle
9 Coconut Cocos nucifera Hirimbura 33/9,Anagarika Dharmapala Mawatha,Galle
10 Coconut Cocos nucifera Hirimbura 33/9,Anagarika Dharmapala Mawatha,Galle
11 Coconut Cocos nucifera Hirimbura 33/9,Anagarika Dharmapala Mawatha,Galle
12 Coconut Cocos nucifera Hirimbura 33/9,Anagarika Dharmapala Mawatha,Galle
13 Mango Mangifera indica Hirimbura 33/9,Anagarika Dharmapala Mawatha,Galle
14 Coconut Cocos nucifera Hirimbura
36/28E,Yasodarawatta,Hirimbura
Cross,Galle
15 Coconut Cocos nucifera Hirimbura
36/28E,Yasodarawatta,Hirimbura
Cross,Galle
16 Coconut Cocos nucifera Hirimbura
36/28E,Yasodarawatta,Hirimbura
Cross,Galle
17 Coconut Cocos nucifera Hirimbura
36/28E,Yasodarawatta,Hirimbura
Cross,Galle
18 Coconut Cocos nucifera Hirimbura
36/28C,Hirimbura Cross,Daham Sevena
Mw,Galle
19 Coconut Cocos nucifera Hirimbura
36/28C,Hirimbura Cross,Daham Sevena
Mw,Galle
20 Coconut Cocos nucifera Hirimbura
36/28C,Hirimbura Cross,Daham Sevena
Mw,Galle
21 Coconut Cocos nucifera Hirimbura
36/28C,Hirimbura Cross,Daham Sevena
Mw,Galle
22 Embarella Spondias dulcis Hirimbura 34/31, Hirimbura Cross,Galle
23 Pini Jambu Syzygium samarangense Hirimbura 34/31, Hirimbura Cross,Galle
24 Mango Mangifera indica Hirimbura 34/31, Hirimbura Cross,Galle
25 Coconut Cocos nucifera Hirimbura 28/6,Hirimbura Cross,Gamagewatta,Galle
26 Mangoos Mangifera indica Hirimbura 47/3,Pasal Mawatha,Hirimbura,Galle
27 Jac Artocarpus heterophyllus Hirimbura 3,Pasal Mawatha,Hirimbura Cross,Galle
28 Mangoosteen Swietenia sp. Hirimbura Hiribura Lane, Galle
29 Coconut Cocos nucifera Hirimbura Hiribura Lane, Galle
30 Attornia Syzygium zeylanicum Hirimbura Hiribura Lane, Galle
31 Emberella Spondias dulcis Hirimbura 16/27,Hirimbura Cross,Galle
32 Bakini Nauclea orientalis Hirimbura 16/27,Hirimbura Cross,Galle
33 Erabadu Erythrina variegata Hirimbura 48/12,New School MW,Hirimbura,Galle
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34 Godapara Dillenia retusa Hirimbura
16/20-A,Shanthi Pedesa,Hirimbura
Cross,Galle
35 Godapara Dillenia retusa Hirimbura
16/20-A,Shanthi Pedesa,Hirimbura
Cross,Galle
36 Kanda Macaranga peltata Hirimbura 38/1-C,Hirimbura Cross,Galle
37 Mango Mangifera indica Hirimbura 516,Hirimbura,Galle
38 Naminang Cynometra cauliflora Hirimbura 516,Hirimbura,Galle